I did this for Dominance War V, 2012, which was about deities. (The 3D part.) It was the first, and so far last, time I entered, of course I didn't win because there were many other more impressive entries, and mine was a bit rushed, not my best work. Here's another example of an entry, in case you never heard of it (random google).
https://forums.3dtotal.com/showthread.php?t=82817
Here's an intermediate sketch, a screenshot from the ZBrush sculpting, and some renders from Maya:
If you have any questions or critique to offer please let me know. Check out my blog, if you like what you see follow me, I have much more of the same kind of thing coming in the future. :)