I've done two versions, because I remember Andy Kinnear saying that he wanted to see a version with a dark coloured coat with a blue shimmer. There isn't a huge difference, but it does change his look a bit. I think the one above looks cuter and more childish. The one below looks a little more serious, for some reason. After talking to him about these two concepts, he said he preferred the darker skinned penguin. So I will do a ref sheet with the colour change
In terms of turning this penguin into a 3D animated model, I tried to make the design as easy to cope with as possible. No hair or feathers to worry about. His feet have slight leg bits, so they can be rigged to bend and stuff, which will help when it comes to walk cycles. His face is fairly straight forward. His beak will be "rubbery" so you can change the size and shape to match his mood. He has a little tail too, for added character and flow. His flippers have no hands, so no tampering with rigging fingers. Oh and his mouth opens and closes, and has a tongue.
Here's some livestream footage of me drawing the penguin critters!