Looking good mate. I am wondering slightly where his other leg is in that shot as I dont think it could be completely hidden. The angle you have the head at would show that the platform he is lying on would be sloping up a bit more and the body doesn't reflect the slope. Adding that extra leg in would probably fix that. OR perhaps lowering the bit the dinosaur is lying on around the grass area near the skulls would help the perspective of the dinosaur match the ground its on.
My coffee is never strong enough and sleep is always an option