Just to highlight what I did, hopefully it looks good, I did need to resize your images and center them but that way there won't be weird gaps on the page. Anyways, as you are the one adding the images, I'll leave it to you to do what you wish.
I'd imagine you can probably leave them as is, because people are likely to set them up whichever way they feel comfortable on a PC. I think it also lists them as the Vita controls, as opposed to what they do, in the controller setup menu. Personally I just used my PS4 controller to play because I didn't like the keyboard controls