Anatomically wrong because...lack of feathers, I guess? Please specify in your description, because other than that, I don't see it! xD (in my opinion feathered/featherless are both acceptable depending on the preference of the artist...sorry, random lol )
It's not like I said they DIDN'T have feathers, I just said that because no one actually KNOWS, I would consider either anatomically correct. And honestly, archeologists argue about the matter amongst themselves, so there's no need to get jumpy at me.
Angst vor ner Spinne... Klasse!