Here is a little video showing the head I did purely from picture references.
While working at Hyperreal I was tasked to create a young version of him, early 20's.
To give us a head start before we get the scan of Iron Mike, I started from picture references from the internet, then refined it based on the scan of him later.
This project was very interesting on many levels, one exemple is that as you get older the skull gets lower and wider.
So I had to take the scan, make him leaner / younger and since we could not use any skin details from the scan I used skin pores details and albedo from 3d scan store to project on my mike Tyson model once I was done with the modeling phase wich BTW I wanted to keep the most information I could from the scan, like his veins placement on his arms and hands for exemple.
Then I used our base mesh wich is a metahuman topology and wrapped it to my Tyson model and projected the details on it and textures.
Then I did the lookdev and the grooming, also did the shoes.
More information on the project here : https://www.hyperreal.io/post/legendary-world-champion-mike-tyson-immortalized-as-younger-ai-twin-by-hyperreal