Small images

How does IMDb feel about very small images? Example: https://www.imdb.com/title/tt1605782/mediaviewer/rm1550628608

I would think that if a picture is too small, IMDb doesn't want it, but I can't find anything about it in the guide (https://help.imdb.com/article/contribution/images-videos/image-guidelines/G27LPBQZA7EAZGJW?ref_=helpms_helpart_inline#) and I don't have a very strong opinion about it either way, so I figured I'd ask here. :)