Nice character so this was a nice character you have here, those arm clamps could have some kind of "SHINE" and even sparkle and the "HAIR" could have a shine of some sort also, I would suggest making the canvus even larger as this was not very big but with a larger canvus you can show more detail and show off more points of focus.
~~THINGS TO IMPROVE ON~~
make the whole Art piece larger with more detail and more stuff to see, a Larger canvus really allows all the detail to comeout, so maybe alarger canvus is something to think about. Adding some shine to the hair and the arm clmps aswell.
~X~