Great first image! The curves of the lower torso are especially well done. It looks like you have a bunch of transparent brushes or layers than have bumped up the colour count to 60. With a small amount of tweaking I think you could get that down to about 20 by eliminating redundant and similar colours, without negatively affecting the look of the image. Why not take a stab at it and re-upload? 
Wow, thaks for the advice.