Zombie sketches

I need zombies for a project I'm currently working on.
I've never really taken the time to draw zombies... I'm not sure why. This was really fun regardless.

Concept design

Here's the concept for my monster in my new thesis idea. This a Trow, a Scottish troll. It didn't come with any more of a description than 'troll' so based it loosely on a mole. I'm still not completely happy with it but I like where it's going.