Going to continue with this over the next week. It's been a long time since I've tried to work in this sort of perspective! I found some areas of weakness I'd like to improve, and will be working on practicing 30, 45, 60, and 90 degree angles freehand. I also found that I'm so used to converging lines that I found it difficult to purposely run lines parallel! I think my lack of experience with inorganic shapes also contributed to me having some trouble planning compositions. I found it a bit easier to progressively subdivide as I did in the lower right....

I have a question about this piece. In the video Marshall points out a vanishing point as the boxes forming the lozenge shape move away from us. I understood from this that our eyeline runs horizontally through that point. Why is it that the top plane of the chimney isn’t visible when it’s below the eyeline? I think I’m not understanding something Thanks!