I just wanted to add that I see a lot of wobbling in the lines for the Rough Perspective Assignment, so I'd recommend more line practice when you do your warm-ups in the future. Try and remind yourself - confident over accuracy. It's more important for your lines to be straight than it is to hit the end point.

Also, once a line has been drawn, don't correct it by drawing over it. The idea is that once you've drawn a line, good or bad, you'll have to work with it.

Otherwise, I agree with Lars.