The purple in the sig is out of place The lighting in the bg doesn't seem to affect the render's right shoulder More effects pls. It feel like a render placed on a blurred bg No flow. Centered Renders and focal points are bad. Either choose a single focal point and create flow and effects out from there. Or create a flow with effects that leads from the glove to the head to the other glove Sorry for blasting you. Its not a bad attempt, but there is a lot of room for improvement
Depth is pretty bad. Needs more effects that you can actually see. Too Blury, dont concentrate on the render conentrate on whats on the outside of the render then blend the render in and make depth and such but dont over do it.