How to remove the tool-tip when pointing to the image?

Hi,
Thank you for the link to your site, to remove the image title on mouse-over try adding this code to the end of your child theme functions.php file in Appearance ▸ Editor:

function remove_title_from_all_elements_on_hover() { ?>
    <script>
(function($){
  $("*").hover(function(){
    $(this).removeAttr("title");
  });  
})(jQuery);
</script>
    <?php
}
add_action('wp_footer', 'remove_title_from_all_elements_on_hover');

The only two images that I see that are blurry is the top two images, both are very small images (300px) and you are displaying them very large, for example, the top image is 300×150 and it is shown as a full width image, please use larger images to correct.
Below are direct links to the images please review.

Best regards,
Mike