how did you insert that image to your page? as image element – or inside a text-block element or via masonry gallery etc. pp.
why do i ask this : if you can separate these images to different sections – then they will not group together. And you can set the responsive visibility on the section.

but if you have the images inside a common section then –
see: https://webers-testseite.de/munford-lightbox/

sadly for that setting of some images are grouped – some are not ( the layout image is a lightbox image too) the solution of Mike does not work here

see : https://kriesi.at/support/topic/accordion-slider-stop-allowing-all-images-to-show-in-slider/#post-1435313

Don’t worry, the script only runs if groups are actually set on the page, otherwise the script will abort.

Thank you – but I recommend using the unscaled images

f.e.:
http://www.interior-collection.de/wp-content/uploads/2025/12/IMG_7870-1.jpg : 135kb
http://www.interior-collection.de/wp-content/uploads/2025/12/IMG_7870-1-529×705.jpg : 285kb (imgSize: masonry – 705×705)

so better resolution but less file size.

background on that : search for : avf_jpeg_quality
e.g: https://kriesi.at/support/topic/enfold-creating-images-larger-than-the-orginal/#post-1488786

One thing is that your images you use are not wide enogh to fill the column width.

you can test my suggestion on placing this to your quick css for that section on that page:

#top.postid-3536 #av_section_3 .av-masonry-image-container img {
  width: 100%;
}

or use the non scaled images ( original sizes ) : No Scaling (Original Width X Original Height)

for the bar under the images try:

.avia_transform #top .avia-fullwidth-portfolio .grid-content,
.avia_transform #top .avia-fullwidth-portfolio .grid-entry-title,
.avia_transform #top .avia-fullwidth-portfolio .avia-arrow {
  background-color:  var(--enfold-main-color-primary) !important;   /* ==== or any color you like === */
} 

.avia_transform #top .avia-fullwidth-portfolio .grid-entry-title{
  color: #FFF
}

here we go – Edit: i think this is the better way to do it :
https://kriesi.at/support/topic/layerslider-translation-into-german-does-not-work/#post-1493597
________________________
(just for standalone plugin – not for the included layerslider)

/**
 * LayerSlider: Auto-Patch for Select Option of lang files
 */

// 1. Daily auto-patch
function child_theme_layerslider_auto_patch() {
    if (!defined('LS_ROOT_PATH')) {
        return;
    }
    
    // Check only once a day
    $last_check = get_option('layerslider_patch_last_check', 0);
    if (time() - $last_check < DAY_IN_SECONDS) {
        return;
    }
    
    child_theme_patch_layerslider_template();
    update_option('layerslider_patch_last_check', time());
}
add_action('admin_init', 'child_theme_layerslider_auto_patch', 999);

// 2. Patch-Function
function child_theme_patch_layerslider_template() {
    $template_file = LS_ROOT_PATH . '/templates/tmpl-plugin-settings.php';
    $locales_dir = LS_ROOT_PATH . '/locales';
    
    if (!file_exists($template_file) || !is_dir($locales_dir)) {
        return false;
    }
    
    // Find available languages
    $available_languages = child_theme_get_available_languages($locales_dir);
    
    if (empty($available_languages)) {
        return false;
    }
    
    $content = file_get_contents($template_file);
    
    // language names
    $language_names = [
        'de_DE' => 'Deutsch',
        'de_DE_formal' => 'Deutsch (Sie)',
        'de_CH' => 'Deutsch (Schweiz)',
        'de_CH_informal' => 'Deutsch (Schweiz, Du)',
        'de_AT' => 'Deutsch (Österreich)',
        // add lang names needed for your uploaded lang files
    ];
    
    // protected default languages 
    $protected_languages = ['auto', 'en_US', 'fr_FR', 'hu_HU', 'uk'];
    
    $modified = false;
    
    // PART 1: Adding missing languages
    $new_options = '';
    foreach ($available_languages as $locale) {
        if (strpos($content, 'value="' . $locale . '"') !== false) {
            continue;
        }
        
        $language_name = isset($language_names[$locale]) ? $language_names[$locale] : $locale;
        $new_options .= "\n\t\t\t\t\t\t<option value=\"" . $locale . "\" <?php echo ( \$custom_locale === '" . $locale . "' ) ? 'selected' : ''?>>" . $language_name . "</option>";
        $modified = true;
    }
    
    if (!empty($new_options)) {
        $search = '<option value="auto" <?php echo ( $custom_locale === \'auto\' ) ? \'selected\' : \'\'?>><?php _e(\'Site default\', \'LayerSlider\') ?></option>';
        $replace = $search . $new_options;
        $content = str_replace($search, $replace, $content);
    }
    
    // PART 2: Removing languages that no longer exist
    foreach ($language_names as $locale => $name) {
        if (in_array($locale, $protected_languages)) {
            continue;
        }
        
        if (strpos($content, 'value="' . $locale . '"') !== false && !in_array($locale, $available_languages)) {
            $pattern = '/\s*<option value="' . preg_quote($locale, '/') . '"[^>]*>.*?<\/option>/';
            $new_content = preg_replace($pattern, '', $content);
            
            if ($new_content !== $content) {
                $content = $new_content;
                $modified = true;
            }
        }
    }
    
    if (!$modified) {
        return true;
    }
    
    // Back up and save
    file_put_contents($template_file . '.backup-' . date('Y-m-d-His'), file_get_contents($template_file));
    file_put_contents($template_file, $content);
    
    return true;
}

// 3. helper function
function child_theme_get_available_languages($locales_dir) {
    $languages = [];
    $files = glob($locales_dir . '/LayerSlider-*.mo');

    if (!$files) {
        return $languages;
    }

    foreach ($files as $file) {
        $filename = basename($file, '.mo');
        $locale = str_replace('LayerSlider-', '', $filename);
        if (!empty($locale)) {
            $languages[] = $locale;
        }
    }   
    return $languages;
}

// 4. Automatically patch after plugin update
function child_theme_layerslider_after_update($upgrader_object, $options) {
    if ($options['action'] !== 'update' || $options['type'] !== 'plugin') {
        return;
    }
    
    if (!isset($options['plugins'])) {
        return;
    }
    
    foreach ($options['plugins'] as $plugin) {
        if (strpos($plugin, 'layerslider') !== false || strpos($plugin, 'LayerSlider') !== false) {
            delete_option('layerslider_patch_last_check');
            child_theme_patch_layerslider_template();
            break;
        }
    }
}
add_action('upgrader_process_complete', 'child_theme_layerslider_after_update', 10, 2);

/**
 * END of LayerSlider: Auto-Patch for Select Option of lang files
 */

Summary of the final solution:
✅ Upload language files to /LayerSlider/assets/locales/
✅ Automatic patch after 24 hours
✅ Automatic patch after plugin updates
✅ when needed: delete_option(‘layerslider_patch_last_check’); – for immediate patch

these snippets will inspect each day – if there are additional lang files for LayerSlider

PS: You can force the patcher by temporarily inserting the following to your child-theme functions.php: delete_option('layerslider_patch_last_check');
after that goto Layerslider Dashboard and : Plugin Updates – Re-Check

although you have the grid the different “images” are placed in a slide-loop and the slides are numbered – starting at number 1 from left to right – to to bottom : slide-loop-1, slide-loop-2, slide-loop-3 etc.

so you can address the “image” via that class – why i do note it as “image” these are background-images – no img tag here !
So a padding will not bring you to your wanted result.

but try f.e.:

#top .avia-logo-grid .slide-entry-wrap .slide-loop-6 .av-partner-fake-img {
  background-size: 80% !important;
  background-position: center;
  background-color: inherit;
}

if you want it for only that element – give a custom ID or class to the partner-logo element.
e.g. with my-custom-class

#top .avia-logo-grid.my-custom-class .slide-entry-wrap .slide-loop-6 .av-partner-fake-img {
  background-size: 50% !important;
  background-position: center;
  background-color: inherit;
}

if you use a jpg for that slide – change the background-color to the background of that jpg.