Practice doing cell shading on simple geometric shapes before moving on to more complex shapes. I'm focusing on just light and shadow, so no mid tones. Boxes are easier to shade but some more organic/rounder edges like cylinders makes shading more difficult. I also added arrows for the direction of light. I especially having difficulties shading the top curve tub. Side note: I purposely didn't shade the biggest box so the addition and reduction of shades becomes more prominent, but I would just shade the whole left side if I shaded it. | Artwod Feedback