To be more specific: I would like it so that they also cant upload an image that will fill up the entire screen.
I want an area of where the picture would be, and then the pictures that are uploaded will fit into there, without being weirdly cropped.
Please try adjusting the images sizes (e.g. Landscape Large for the listing gallery images) and re-upload an image for testing. Some cropping rules are required anyway, but we’ll try to improve the gallery UX, maybe by adding spaces on the sides if there are images in portrait format.