I recommend Chris from Gallows.
I was not blown away by his Splitroast design and wasn't eager to use him on our new CD, but we gave him a shot and he has done something really impressive, I'm sure you will all be seeing it soon. He has worked with us every step of the way, didn't bat an eyelid when I flat rejected his first concept drawing, came up with drafts quickly, spend ages redrawing and modifying because of tiny details we wanted to change, gave us proffessional updates, all that sort of thing.