Pretty cool composition you have but you have some flaws with lighting and colors.

First off, your lighting in this piece is a bit too far off and doesn't hit the focal as much as it should. Lighting being that far is a major distraction and leaves unappealing negative.
So, fix that up .

Also, your colors seem a bit washed out. Although you've organized some pretty cool stuff on the right, washed out colors are bringing down it's appeal. So I adjust adding more/removing adjustments to fix that up.

I'd just like to also throw in the quality of this piece is a bit low and that may have been because of the original render/stock used.
Keep it up :]!