Hi there! I'll be critiquing your DAB homework today.

On Linework:

I think your primary issue here is simply a lack of muscle memory, as displayed by your tendency to curve or bend when you draw a line, which implies to me that you're consciously trying to push through with confidence mentally. That's the main point of importance, and as long as you focus on that the line quality will invariably improve. To be safe, however, I'd like to reiterate one or two points in the lesson just to make sure you're keeping them in mind.

I notice that on your ghosted planes exercise you tend to have very good accuracy, but often at the cost of your line quality. This effect is significantly more pronounced on your boxes exercises towards the end of the lesson, as you grapple with the additional requirements of "oh I must draw this 3 dimensional box in correct perspective", which causes you to compromise your line quality as you focus on "getting the box right". I think you make this mistake in your ghosted planes as well, as you try to focus on "drawing the plane right". This isn't an uncommon issue, I see it with nearly every student I critique (and is a mistake I made myself). However it's worth pointing out because this can build extremely bad habits;

"oh I need to get this line/square/box/animal/person/drawing correct" -> and so you forgo the quality of your lines in favour of "getting them right". This will hurt your drawing abilities longterm, as well as perpetually hamper your confidence as you lack the mileage to feel comfortable simply drawing a line from A to B. Whilst it might be difficult and frustrating to feel unable to draw the lines you want, if you can focus on building up your confidence now it'll save you a lot of pain later on in your art journey.

https://drawabox.com/lesson/1/10/levels Have a look back at this section to really solidify where you should be focusing your efforts.

Your ellipses look good overall, not too much to comment here in the way of mistakes. Additional practise will help you refine your skill here. One point, however, is that you seem to gravitate heavily towards more elliptical, pointy shapes, to the point that I can barely see any circles in your work. When you're practising ellipses, be it in any of the exercises in the lesson, try to push a focus onto drawing circles to make sure you don't neglect them in favour of your pre-existing comfort zone.

On perspective:

Overall you've done quite well on this section. You seem to have a basic understanding of the principles of perspective, vanishing points and so on, but you struggle on the more advanced exercises of Rotated Boxes and Organic Perspective (as is expected of students at this stage.) In the organic perspective exercise you struggle to find the correct convergences, drawing the boxes totally free-form. The 250 box challenge will be especially beneficial to you I think, as it'll give you good mileage in training your brain to think in 3D and understand how things should sit in space. Like your linework, this is purely an issue of muscle memory, though in this case it involves the brain rather than your shoulders. For your interest, it may be of value to revisit Rotated Boxes and Organic Perspective after finishing the 250 box exercise to see how you're able to grapple with these advanced concepts later on.

Overall though, good work here, don't worry too much about it for now.