I’ve recently commissioned art for Of Sheep and Battle Chicken. The artist is Armesan (http://armesan.tumblr.com/), who I cannot recommend strongly enough.
Already the initial sketches look beyond awesome, and when I get more finished products I’ll post them here.
The artist skills are excellent. Good on you for finding her, cant wait for Shepard in full battle gear ODIN in hand whilst doing a charge.