Gorgosaurus libratus (or Albertosaurus if you prefer). Pencil sketch.
In an effort to improve the scientific accuracy of my work, I've been making some attempts of restoring muscle and other soft tissue over the skull and skeleton of some dinosaurs. As you can see I've made the addition of lips (although still accounting for an overbite), more prominent ears and hopefully a better representation of the muscles on the head. I'm planning further studies for other parts of the anatomy, but for now I positioned the forearms quite far back, a possibility suggested by Carpenter (2002). The top Gorgosaur is based on ROM 1247, the lower one TCM 2001.89.1. On the lower Gorgosaur, I made the eye larger and positioned it lower in the orbit, so they may look a bit more different than intended.
As an aside, it seems that many people have illustrated Gorgosaurus as a sprightly juvenile or subadult, and there seem to be fewer representations of the more robust adult. Let me know what you think - any comments on anatomy are especially welcome!
Carpenter, K., 2002. Forelimb biomechanics of nonavian theropod dinosaurs in predation. Concepts of Functional, Engineering and Constructional Morphology. Senckenbergiana Lethaea 82: 59–76