Son Goku Super Saiyan 4
Phase 1: sketching the pose on tablet (Infinite Painter is the app I used).
Phase 2: working on lineart and character's details.
Phase 3: basic main colors.
Phase 4: add the background (basic colors).
Phase 5: add shadows on the basic coloration.
Phase 6: add more shadow and the lights.
Phase 7: add the fx and the last details.