It's always interesting to see a non-paleo-artist's take on a dinosaurian form, because there are all sorts of cool design possibilities that paleontology-trained artists would normally refuse to incorporate in their crippling fear of being "scientifically inaccurate."
Still, this does incorporate a lesser-known concept in dinosaur study that suggests theropods (carnivorous dinosaurs) to have big cheeks that cover more of the jaws than most traditional media portrays.
Regarding technique, even if it's unpolished, it's still sublime. Great detail on the teeth and eye, and a nice angular outline. The big horn on the nose does call Ceratosaurus to mind, though they had three smaller horns. It's always a cool idea to add big, vicious horns/spikes to theropod forms.
It could use a little something on top of the head though, in the space betwix the little spike-feathers and the eyebrow ridge.
Great work!