Hello, and welcome to drawabox. Let’s take this one exercise at a time, shall we?

Starting with your superimposed lines, these looks solid – they’re smooth, properly lined up at the start, and of a consistent trajectory. The ghosted lines/planes look quite confident, also, though you’ll sometimes alter their trajectory. Most often, this happens at the end of them, so what’s likely happening is that you’re being a little too conscious of the end point, and course-correcting to meet it – try not to.

The table of ellipses exercise looks fantastic. Your ellipses are smooth, rounded, and properly drawn through (sometimes a few too many times, but that’s alright). The ellipses in planes exercise looks solid, too. Despite these new, more complicated frames, the ellipses maintain their prior smoothness/roundness. In the funnels exercise, there’s 2 instances (I’m guessing you’ll be able to point them out), where you’ve completely ignored the minor axis. This is, of course, not something you should do – in fact, lining ellipses up to it is the main point of this exercise; otherwise, it’s just a slightly altered table of ellipses exercise.

The plotted perspective exercise looks solid. Small tip, the back line needs to be perpendicular to the horizon. Minor errors will make its start/end points suggest that it’s not, but in those cases you’ll need to compensate, and draw it correctly, even if this involves ignoring those points.

The rough perspective exercise is a little mixed. The convergences look solid – they start off strong, and improve throughout the set. The linework, unfortunately, is not the same. Remind yourself that there’s no difference between these lines, and ones you drew in previous exercises. Regardless of the big picture, what you’re doing hasn’t changed – so try not to get overwhelmed; it’s just lines.

Solid attempt at the rotated boxes exercise. Regardless of how it came out, what matters is that you’ve seen it through to the end. Let’s talk about how it came out, though. The boxes do a good job of rotating, at first, but start to lose their way at the diagonals. This is about the point where you stop being as mindful of their neighboring edges, and using them as guides on what further lines should do, also. Of course, the two are connected. This is not necessarily wrong, mind you. As you get better at drawing boxes, you’ll start having to make certain informed decisions that perhaps conflict with what your neighboring edges are telling you. Until then, however, it’s best to stick to the instructions.

The organic perspective exercise looks quite good. There’s the occasional box that’s a little too foreshortened (too dramatic), but the majority of them consistently shallow. This, and their increase in size, do a solid job of conveying the illusion we’re after – nicely done.