Colorized and digitized the feathered T. rex I've been working on. Also fixed the perspective and posture of the legs, which really bothered me in the pencil sketch. More may yet be done on this one.
Utahraptor got a similar treatment, digitally colored in Photoshop, with a complete redo of the arm feathers from the original pen and ink sketch, done way back last year.
Tiny sketches of a rex and and allosaur, each about 3 inches wide.