Barlowe's Yutyrannus - Lineart

Chancing upon ~juniorWoodchuck's reinterpretations of dinosaurs as Darwin IV aliens I couldn't help but try my hand at the concept and at the same time see if I could practice formal perspective.
I'm pretty much done with the lineart as it is, but as always suggestions and critiques are very welcome. You can also see if you can discern what specific critter I modeled the Yutyrannus after.

Digital ink by Wacom tablet on ArtRage 3.