I'm not quit sure how to explain this but here goes. I have an android phone and when I put a picture as my wallpaper it stretches across multiple screens instead.

My home screen may have like a face and if I slide the screen over it may have part of a cheek or arm there. I have no idea if that makes any sense or not.

Anyways I'm trying to figure out how big it needs to be to fit all in one window. Thank you