Oh, darn. I hope I'm not too late to add my input. :unsure:
The moment I saw this, I thought, "Whoa! That looks great!" So that's good news for you.
If you've already baked it, it's still a good clay figure, but if you haven't, I do have some suggestions if you want to make it look even better.
The main thing I would change is those two little trailing flaps on either side of Petrie's tail. He doesn't really have those (There may be scenes in which he looks like he does, but I think they're just the lowermost edges of his wing membranes). If you wanted the figure to be REALLY accurate, you could make his wings wider, extending further down his sides, behind his legs, all the way to the base of his tail. Petrie's wing membranes extend all the way down the border between his brown back color and lighter belly color; in fact, you could say that his wings ARE the border.
Another issue is that we can't really tell how Petrie's head looks from the side in these pictures, but the lower part of his beak looks to be wider and less pointed than the upper. His crest may also be a bit lopsided. Finally, you could make his neck ruff look a bit puffier by adding more clay (At the moment it appears to be flush with his neck and shoulder area).
