The shading and highlighting on this is fantastic; you've got a serious knack for putting that in and I really love the gradient style you use. Lots of different complex poses and colours too (can imagine how long that took; ouch). The sparkles are a nice touch too.
Really hope your proud of this because you should be; was impressed with the WiPs when I saw them but seeing the final piece it's mind-blowing good! Congrats!