Gotta be Critique if your gonna reply here, sorry. :c
Questions sometimes lead to critique. For example, they asked about a feature they seem to think should be there. Is it? Also, saying nothing hostile about the avatar is also a kind of critique... because sometimes saying, "I see nothing wrong." IS your critique. Take it as you get it, hun.
That said, I also see nothing wrong at first glance at these images. The selling point for me will be features that come along with it, such as twitching antennae, string shot ability, talking muzzle (which would be awesome on this). I don't remember if Wormmon had one or two toes per foot (and I know there was no anthro form), but maybe adding a second toe to the feet, since it IS an anthro form, wouldn't hurt.
Always remember you're altering things when you do stuff like this. Wormmon in the cartoon is a 6 or 8 legged creature, so single toes make sense, but when the shape changes, you can at least imagine other factors shifting a little.
Also, a question. Are you gearing up for some huge avatar release, making them just for yourself, or what? You've posted lots of avatars I've never even seen before here.