Well done! You show a good understanding of tension points and compression. When drawing clothing, think about the garment's organic nature and its folds, both to draw them more naturally and to achieve better shading. In your case, the result feels a bit boxy because you’re thinking in terms of rigid forms. This likely comes from the perspective approach you applied, which isn’t wrong, but try to focus more on how folds overlap rather than trying to make them symmetrical. Folds aren’t perfect or strictly aligned to the perspective in that way. For shading, try thinking of the folds as cylinders. This will help you understand their rounded (or slightly rounded) form, with a light side and a shadow side. Starting with simple graphic shapes is a great approach, and from there, you can build up more detailed effects like ambient occlusion, bounce light, etc. But overall, keep the organic nature of forms in mind. Hope this helps!
