Here's an art test I did for EA just a few weeks ago. Had 5 days to sculpt the full character. I had the freedom to change what I didn't like and keep what I did while still retaining the style of the character. Decided to take it a bit further and threw on some textures for fun. Slapped together a quick Marmoset scene and BLAM! ..... zombie...
Based off Darren Rawlings' concept :
https://www.artstation.com/artwork/lXeYJ