Ok... I clicked to download Catwoman wallpaper and what I got?
"Available resolutions: 336x280"
Yes. Only that one size.
This is supposed to be a wallpaper? For what device? My 4 years old Nokia 5800 has higher screen resolution.
When I see someone calling some picture a "wallpaper" I usually expect something around 1920×1080 resolution...
Please check "Psylocke" has any download links, I can't find any on the download page. Other than that, most of them is based on outdated resolution in the 90s era, there's plenty of Full HD resolution wallpaper out there, well, provide the author can update them.