Making images bigger in a list layout

I have a list of images in the Panel.

layout: list

I don’t want to use Cards or Cardlets because they are too big and I prefer the list view (as the images are listed on the actual web page). But is there a way to make the images bigger?

Or, a way to make Cardlets smaller and listed one on top of the other?

No, you cannot change the size of image in list layout, the thumbs wouldn’t get larger even if you fiddled with CSS settings.