Your dinosaurs are amazing. I've always been a dinosaur fan and so have spent many years drawing them, but am nowhere near your level. Do you have any tips for bringing sketches to life?
I wish I had better advice than practice a lot! It sounds boring, but that's the best way to get good. Also, draw and paint a lot from observation, Step away from dinosaurs and draw the things around you. That way you'll better understand the way things appear in the physical world, with light and shade and volume.