For the first 50, your lines are very clean overall, though there is some light wobbling present throughout the set. Your convergences also show good accuracy, though I did see some lines pair off and converge towards two vanishing points, like box 4, box 22, and box 43.

For the next 50, your lines show improvement. Wobbling is still present thoughout the set, but most is less dramatic than before. Your convergences also show improvement, though I did see a few more instances of lines pairing off, like box 59, box 72, and box 97.

For the last 150, your lines continue to improve, with wobbling further reduced. However, since it is present throughout the rest of the set, I recommend reviewing the information in this section and ensure that you are practicing the proper technique. I did see a few instances where lines were redrawn, like box 138, box 195, and box 245. Remember that, for this challenge, it's better to have one smooth, confident line than to try to fix it by redrawing.

Your convergences also continue to improve, though there are still instances of lines pairing off, like box 112, box 172, and box 226. In these boxes, the inner lines (green and orange in this diagram) diverge instead of converging at the vanishing point. Keeping in mind the angles of neighboring lines can help when planning the box's construction.

All said, you did very well. I'm going to mark this challenge as complete.