>>788452a lot of your color choices don't cohere with each other. Your values could be more grouped to help the images read better, avoiding using straight black when painting is also a good heuristic. some of your application of highlights appear muddy and kind of random. The edges and shapes of shadows are fairly loose in a bad way, they look indecisive as opposed to being loose to retain the energy of a pose or composition. A lot of the materials are handled the same way, like metal, skin or cloth. looking into value grouping, edge control, color harmonies, and rendering materials would probably help.
