Hi friend! The problem you seem to have imo is that you dont have clear in mind your vanishing points and that make your boxes looks off. Try to keep in mind while drawing where your lines are going. For the “cutting edges” part i see some good results, i think its more a question of practice and observe a lot from real life… Anyway even in that case keep in mind your perspective. Maybe try to draw first your perspective grid and draw your modified box and then re-draw it all with different vanishing point. Hope this helped a bit! | Artwod Feedback