hey yo bro, i think u should make things more sleek,
like uve made the hair fluffy, shirt baggy, and pants all tent-looking, and the hands all big and bloate
i think u should try making more body fitting, and like more physics laws abiding shirt and hair,,,
also u should add shadows to ur art, it looks an unnatural level of 2D
and work a bit on anatomy and proportions,,, if u would like i could give u a roughly edited version to give u an idea of what im talking about,,,