Pixie dust... too much of it, and not enough in the right places. The 'beam' type things shouldn't cut off at the edges of the screen so abruptly, try giving them all heads, it should look better. Also, the straight beam doesn't flow very well with the rest of the beams. The ball of light in the center detracts from the render, which isn't very good to begin with. It might look better if I could see all of it though.. I dunno. Try blending the 2D, adding a better background would be nice, maybe some stars, or some dull lines. Sorry for the semi-harsh crits.. I just saw everyone giving you praise, so I had to point out the flaws. Nice effort though, it has potential.