it's fuckin shittttt! na jk man, haha. when doing abstract pieces, try not to give it a symmetrical effect, but rather go for a nice composition, as it can make or break an abstract a lot of te time. Work on colour choice, it's looking really dull and desaturated atm. I would recommend downloading adobe kuler to help with colour combos. the light source is really distracting here, also it's looking really chaotic at the bottom, I'm not really sure where to look. as for the smudging it needs to be cleaned up. although the general 3d work is well done, just work heavily on your postwork

I wish you the best of luck, where are you studying?