Oh! Acrylics are fun to use. You did an excellent job with it.
I like when people add different coloured shadows etc, I'm not great when it comes with that. I find it difficult actually. You pulled it off quite well.
This brings me into a dark video game like atmosphere. (Well, really..) And I thought that's pretty cool. It's actually fitting.
The shines on his hat is delicious. I fancy his forehead too.
Something about those buttons on his overall yanks me. One of them is coloured like it's all plump, and the other almost flat. But that's just me, I guess. Oh well.
Anyways, wonderful piece of work!