Thread:DQueenie13/@comment-4164143-20150113095623/@comment-918376-20150113150052

Not a really concrete one, no. It's more or less:
 * 1) No watermarks (i.e. AnimeWow, KissAnime, etc.)
 * 2) Clean screenshots, good resolution (no heavy pixelation)
 * 3) No subs
 * 4) No redundant/overabundance of images (i.e. 600 pictures of Akatsuki in the same outfit, just standing around. The images should have some differences, whether they be her using a different skill, in a different outfit, doing something plot-relevant or in a plot-relevant screencap, etc.)
 * 5) No fan art (unless it's for a user page), although that one should be obvious.