Well it depends on what race you are. For my race (male shura) it always looked like I was kinda angry, so it fit when i was killing monsters. Some other races (mirror children) are really cutesy, too cutesy for me anyways.

DOMO is a much, MUCH, more polished game than DECO. DECO feels really choppy to me. DOMO is a very smooth game. Even thought the server is on the other side of the world I can still walk around crowded towns on saturday evenings with 30FPS. Also, DOMO's class system is much better than DECO's. Any race can become any class, and you can change your class at any time.

Oh, and in DOMO you can fly ^_^