Hey there! First of all, I think you did an amazing job here already, well done! There's just one thing that came to my mind looking at this and it's more of a perspective thing: Defining the middle of your boxes in perspective might push your accuracy here even further. Taking your second box as an example, I drew over lines from corner to corner to identify the middle of the plane, then creating a line towards the top where the two corner lines meet. This way your form accurately adapts to the perspective and you avoid the form getting kind of distorted by it. I hope this helps and keep up the work! | Artwod Feedback