Hello! Welcome to drawabox, and congrats on getting over the first hurdle. I’ll take a look at this for you.

Starting off, your superimposed lines are looking quite good. They’re smooth, properly lined up at the start, and of a consistent trajectory. They do tend to fray a little quickly, though, so I wonder if you’re perhaps drawing them a little too fast? Go a little slower, and see if that ends up helping them. Also, there’s a bunch of empty space in the page, that could’ve been used to draw some arcing lines; try to make the most of opportunities like that. The ghosted lines/planes look mostly good (save for the going too fast thing), though I notice 2 areas that could use some improvement. First, your lines tend to change trajectory near the end, as they’re approaching the end point. My guess is that you’re a little too conscious of it, course correcting in an effort to hit it. This is not necessary, particularly if it messes up the smoothness of your line. Second, your line quality dips a little in the ghosted planes pages; consider giving this another read through.

The table of ellipses exercise is not perfect, but it shows a good start. My issue with it is that the ellipses are neither confident, nor rounded (students usually get one really well, at the cost of the other – yours is more balanced (I suppose that’s a good thing, though)). What you’ll want to do, then, is ghost a little more, and, when you move past said ghosting stage, not concern yourself with the results. After all, all you can control at that point is the confidence of your marks. Be careful, also, that all of your marks originate from your shoulder; some of the pointy ones, here, might be caused by a lesser pivot getting involved. Simply check back, from time to time, and switch back if needed. The ellipses in planes struggle from similar issues, unfortunately. It’s important to remember that a confident mark is correct, regardless of any issues in accuracy. A wobbly one, on the other hand, is incorrect, regardless of how accurate. The funnels are especially lacking in these respects, though that makes sense, them being the most difficult of the bunch. Very quickly, because we’ll be starting from the top in the revisions, what you’ll want to do here is spend a little more time ghosting, so as to make sure that they’re properly aligned to the minor axis, and spaced from each other, and the funnel, and execute confidently. More on this in a second.

The boxes in the plotted perspective exercise are a little small. You’ll find your work much improved, in many respects, if you draw bigger (though I understand that that sounds counterintuitive at first). By the way, the lineweight/hatching should’ve been applied using a ruler, here.

There’s a few frames where I think you might’ve rushed yourself a little bit, but the rough perspective exercise looks really good. The linework (excluding the hatching lines) looks confident, and the convergences are mostly correct. As for the hatching, it’s important to give each hatching line the same attention (and time!) you would a normal line. Otherwise, it’s far more likely to distract, than guide; in which case what’s the point?

The rotated boxes exercise is missing one box (top left!), but what’s here looks good. It could be a little bigger, as mentioned, but the boxes are snug, and they do a solid job of rotating. They look fair strong in the back, too, and what issues exist in their depth lines, we’ll iron out in the box challenge, so not to worry.

The organic perspective exercise looks mostly good, though I am wondering if you plotted any start/end points for your lines, here. If you didn’t, you really should. As for the boxes themselves, their increase in size is a little subtle, and their foreshortening a little dramatic, but they flow well nonetheless.