The purple is strong, bold and juicy. Was the inspiration from Barney the dinosaur? If not, sorry, I've put that in your head now eh.
By default I tend to do animals with a paler underbelly, and something interesting going on around the hands and feet. That realism is something I can't enough of. Woudl be tricky for purple though, paling it up can go weird, heading into a red-brown would be my first experiment.
Like MIJ, I had that itch to make an exodite after seeing these models. Followed through with it, a little. Ordered all the parts from "bits and kits", an Eldar leg here, a Dark Eldar torso there. Never got around to actually doing the mini though. It's still in the queue though, want to try and pull off a red on it that looks natural before I commit to doing it on the Heresy dragon .