I made Thanos from Avengers:Infinity War.
Initially, I was going to lightly sculpt him and be done with it, but it got more and more fun, and I found myself making pores and hair, etc.
In addition, I’m start thinking about it would be cool to put props like Captain America's shield, Iron Man Mk50, Mjolnir, etc., which increased the amount of work I had to do.