Female dinosaur character has serious flaw.
I know that your series is supposed to be Ancient (dinosaurs) animals vs. Modern (mammals) animals.
Mammals are called mammals because they have mammary glands (you know, breasts). So, I can not figure out why then it is that your female dinosaur character has mammary glands; which would make her a mammal.
Also, why does your female dinosaur character's head and face look so human-like and why does she appear to be the only female dinosaur? (Why are there no long-faced female dinosaurs? Or maybe there are, but you just can not tell the genders apart?). I guess you were just trying to do the same thing with the female dinosaur as you had done with the female mammal characters; of which all seem to be from the cat family for some reason (Why are there no female bears, wolves, moose, cows, etc.?).
But, then again, now that I think about it, even your mammal female characters have their mammary glands in the wrong location and too few of them, since your going for that humanoid look. So yeah, I guess it really doesn't matter.