A good piece of work.
However, the tyrannosaurid head is inaccurate. The late dromaeosaurids had a more birdlike head, with a elongate muzzle. Useful for scavenging. Add a long, stiff tail that bends at the base. Check with your local library and on the web.
Kartoo is a good search engine, enter "dinosaur" into the field and click "search".
In most basilisk species the tail feathers tend to be short in the female. With the male, during the breeding season the tail feathers grow into display plumage. The exact type and form depending on the species in question.. They do have arms.
For the most part the feathers do conform to the body, though the animal is able to "fluff" them for warmth in cold weather, or to make themselves look bigger.
Speaking of which, you provided no scale with your dinosaur. The beast could be most any size. Adding in a bit of background would certainly help.
Have you done any art from life? Animal studies etc.? If not, I recommend getting in touch with your local zoological society. Get an annual membership (that'll get you in the zoo for free), and make regular visits to sketch the critters. Also get in touch with your local natural history museum. They'll be a big help with dinosaurs etc.
I do have one art technique recommendation, sharpen your lines. The dino you provided does like a bit blurred.
Aint I being cruel?
Anyway, again I thank you for your interest. I have one more thread to check on, then I'm off to get the first basilisk up. When it's done I'll be announcing it here in this thread.
Edit: I just noticed it. Your dinosaur has two right feet.
