Lines look ok. Just remember to ghost, and execute a quick confident stroke. You still have fraying, but since it's at one end, you're taking your time to start at your starting point.

However, in ellipses in planes, you seem to start and stop short at times of your points. Not a huge issue, but it's leaving you with open forms.

Ellipses in planes and tables of ellipses look ok. You have a lot of wobble at times, so same thing applies. Ghost your ellipse, execute it, and follow through a couple of times quickly and confidently.

Not much to say about plotted perspective or rough perspective. Plotted perspective lines up nice. Rough perspective has some wobbly lines, but there's not much else to say that I haven't already. When you do hatch though, remember to ghost, as long as it's confident, and you're making a mark with intent.

Rotated boxes looks good. It's a tough one. I think you need to hatch the inside planes that are stick out, but it's not a huge deal.

Organic perspective looks good too. There's a good progression between box sizes. Just remember to close out the forms. Try not to start and stop short.