A super oldie but still holds up ok, did this back in 2008!
Spawn the Gunslinger, my entry to the Gameartisan's Comicon contest. His polygon count including guns and effects is 6917 triangles and he uses 1k textures. The high poly was almost exsclusivly modeled in ZB3, the fine detailing was done in Photoshop and Crazybump.