How can the logos be automatically resized according to screen size (PC, iPad, iPhone, etc)? Anyway the logos can be made responsive ie:resized automatically?

Please see thomasvt.ddns.net for the issue. The default banner resizes correctly, whereas the OT scroller banner does not resize well.

Hi,
image's size not resize automatically
You can add css code with your screen with what you need to change,example with tablet view::
@media (min-width:768px) and (max-width:991px) {
.the-carousel {width: 100% !important }
.the-carousel .ot_content {width: 50% !important}
}