Not really bad, but...
1. People might be mean since every model has to be astonishing or they tag you as crap and flame.
2. Why is his face blue? At least put it standard terran face, or another face (and that would be a plus), right now it looks, like he was thrown some blue paint bucket.
Its good for a start, just take the time to look it ingame, and check it doesnt has any bugs and that it looks as intended.