how to add image into full slider screen

Hi,
I have a particular request :-), I have created on my website single page with one element “full slider screen”.

impresaedileghisini

I have insert a caption at bottom position with this custom code:

+39 030 3384972 [av_font_icon color='#ffffff' position='right-custom' font='entypo-fontello' icon='ue854' size='40px' av_uid='av-ubtu']</br> (Email address hidden if logged out) [av_font_icon color='#ffffff' position='right-custom' font='entypo-fontello' icon='ue805' size='40px' av_uid='av-ubtu']</br>

Is all ok, but i I would like to insert some images ( 3-4 partners’ logo) at bottom of page, the final result should be like this:

I know that is very difficult, but I will be very grateful to those who want to help me :-)

thanks for you support