Hi Hi! This is a fantastic option for learning perspective and basic shapes in fixed perspective. I do not have much to say other than to put more effort into your linework. Regardless of whether you got it right or not, do not be scared to apply good linework because it is another level of learning. When working out, you want to let go of the need to be cautious. It teaches you to make mistakes, which helps you improve. Additionally, I suggest setting aside a different sheet to practice using cubes to create perspective grids. You can do longer study sessions with greater focus for these. Try out other viewpoint extreme points, like the ones I created on the side, to add another level of challenge. In order to comprehend how things are built on the unseen side, make sure you have clear boxes. Combine boxes, make original shapes, and put them in perspective (with and without transparency) to increase difficulty even further. I hope it helps! Keep learning! | Artwod Feedback