Welcome to drawabox. To address something you said really quickly, checking your points, and redrawing them if you find them to be unsatisfactory, is what we encourage you to do. So, by all means, continue to. It’s only lines that we take an issue with, when they’re drawn again, because that suggests the opposite: a lack of planning, that you then tried to sweep under the rug. I hope that clears things up. Let’s take a look at your submission.

Starting with your superimposed lines, they look good. They’re smooth, and properly lined up at the start, but not always of a consistent trajectory, so be mindful of that. The ghosted lines/planes look quite confident, too, and I’d not worry about the overshooting too much unless it’s a product of you not plotting start/end points for them (which, by the looks of it, you’re not for the non-diagonal center lines of the planes).

The table of ellipses exercise looks great – a lot of confidence on display here. Two things, however. First, try to vary the degrees/angles of your ellipses a little more. Second, see if you can lift, not flick, your pen off the page at the end of your rotations, so as to get rid of those tails. The ellipses in planes are well done. They’re a little too influenced by their frames, from time to time (deforming to fill up the plane), when, in fact, we’d like you to prioritize their smoothness and roundness – in other words, their confidence - not their accuracy. The funnels exercise looks good. There’s the expected misalignment near the edge of your funnels, for which the general recommendation is to simply ghost a little more, but overall, you’re doing well. Keep it up.

The plotted perspective exercise looks clean.

The rough perspective exercise starts strong, and improves quite a bit by the end. Its linework is confident, and its convergences on-point, too. It’s not exactly a critique but, in lieu of anything else to say, I’ll mention that it’s best if your correction lines stop at the horizon, rather than continuing past it – it’ll make it that much clearer how off you were.

The rotated boxes exercise is well done. It could stand to be a little bigger but, beyond that, your boxes are snug, and properly rotating, so all is looking solid. They do stretch a tiny bit further than we’d like them to, into the page I mean, but that’s not something we expect you to have much control over right now, so simply keep it at the back of your mind, as you work through the box challenge, and consider trying this one again, after it.

Speaking of boxes, the organic perspective exercise is nicely done. Your boxes are well constructed (if a little lacking in variety – most of them are cubes), and their size, and foreshortening, do a great job of communicating the flow we’re after.