I haven't posted any feathered tyrannosaur sketches--even though I've done some over the last few months--because I still haven't come up with a truly satisfying way of "fuzzing" them up. There are some good ones out there, and some bad, stuffed-animal ones. I wanted mine to look really archosaurian-- birdlike, but reptilian, too. This might be as close as I've come.
I don't know how, but this centrosaur ended up kind of James Gurney-like.
This Iguanodon is my first experimentation with gouache. Have to try to do more of these soon.