Ok, did a little editing:
OLD-->
NEW-->
Now, it's not exactly easy to see what I've changed, so if you want stark contrast, just open both images in a new tab/window so that they are right over one another, then just switch tabs/windows to see what's different. ;)
But, I'll tell you what I changed anyhow. One, I added a medium blue and yellow to give the faces and tail some depth and shadow. The faces are brighter, and the far left head has a fixed spike. I'm pretty sure I've fixed some other spikes somewhere. :P But I also added some more shadow to the body/feet and edited the shine from the electricity a bit, and.... I think that's about it.