I'm seeing this closer in scale to Krilowatt myself, most of these look large for my personal taste. Not saying that large is wrong, ti's just a concept I won't like for a while.
I'm not a high ranking spriter (Although I used to be competent), but I'm apparently good at this sort of stuff.
Quanyails: Nice and neutral, although the head looks a bit twisted (The eye on our left feels like it should be obscured? Wait on others though).
DrOfla: The neck has a large part sticking out, and the backgrounds feel incomplete.
Aargornbird / Wyverii : Sorry to group you 2 together, but the pose here is similar and the sizing the same. They're nice neutral and similar designs.
Gun6: Probably my favourite in the thread atm, it's an interesting and active pose which still retains the cute features.