I posted this in the forum under the giant concept art thread, but I'll go ahead and post it here. I made the lightning light yellow so that it would stand out. This is just the basic pelt. I was thinking the antler set that would go with this could look like skinny lightning tendrils, like this.

I wish I had thought to put the light blue next to the yellow before blackening the contours. The bolts are supposed to be yellow outlined in light blue.