So this stuff happens pretty often, and I think it's a bit of a bad tagging that should be avoided if possible.

Whenever there's a tumblr/twitter/dA/etc account named X-works, X('es-)art, X-draws, X-nsfw and the like, the artist's name is usually just X.

Artist named X should be tagged artist:X, unless it's clear tag X should be of different type, then it's artist:X_(artist). So artist:flamingbutts not flamingbutts_(artist), but peach_(artist) is ok.

That's just my opinion mind you, not a rule or anything. But give it a thought next time you tag anything like that.