Great progress overall. I like how confident your strokes are even if you overshoot or miss sometimes.

What you can improve:

Your sense of 3D space: you've progressed in this aspect considerably too, now you could review the lesson about how the lines of boxes converge again and identify the mistakes in your "organic perspective" sheets.

Some lines there do not converge or aren't parallel when they should be. They "go further apart" when they shouldn't.

Just thinking about the behavior of boxes in 3D space will improve your understanding over time, no rush.

Hope this helped, goodbye