As a quick general note, you probably shouldn't be thinking of "doing again" since you probably should be doing them as warmups. I'd suggest, for rotated boxes, you do just a quadrant rather than the full thing in warmups.

Anyways, onto critique.

Lines I think most of these are done fairly well, with confidence being seen throughout. On your superimposed lines, I do see some constant correction of the lines, try to minimise that. Instead, focus on one straight line. Good job here.

Ellipses You're focusing too much on accuracy here. Aim to get a smooth ellipse, even if inaccurate. Trust fully in your ghosting even if it looks like you're overshooting. Also, ghost mindfully so you'd reduce distorted ellipses. In the future, try to increase ellipse degree as you do funnels for further practice.

Boxes As a general note, don't redo your lines, even if they're inaccurate/incorrect. This only serves to draw attention to the mistake, which you don't want. Also, focus on line confidence. I see some wobbly lines here. Remember never to sacrifice line quality no matter what. In your rotated boxes, try to implement hatching and line weight to better communicate the forms to the viewer. I do think this is decently done, so keep this up. Finally, for your organic perspective, try not to "cut off" any boxes, draw them fully.

Overall, I think you've done a decent job at this. Remember to do your warmups, and bear in mind line quality. I'll mark this as complete, good work.