Hi, welcome to Drawabox! I hope you have a great time following this course and that you'll eventually reach the finish line. Here's my critique for each section:

Lines

First things first, your lines are, more often than not, confident and straight. Some a bit wobbly, others are arched, but overall you're in the right track. My advice is to simply keep practicing and to make sure you are using your shoulder for every line. Other than that, in your superimposed lines, often they're fraying on both sides of each group of lines. You should focus more on the starting line and make sure you start on it every time - and you'll be eventually hitting your end points consistently with practice.

Ellipses

Well done with these too. Your ellipses are not always snug together, and some are deformed, but it's a good start. Two things:

• Draw through each ellipse no more than 3 times (twice is ideal). As it is now it's very messy and redundant

• Funnels exercise: Your ellipses are often slanted at an angle from the center line. Remember, the center line should divide each ellipse into two mirrored, identical halves.

Boxes

It's in this section that you're having most trouble.

Plotted Perspective and Rough Perspective: In either exercise, lines that are meant to be perfectly horizontal or perfectly vertical are often not, which makes for deformed boxes

Rotated Boxes: The main thing is your lines here are exactly how they shouldn't be and how you successfully avoided drawing them in the earlier exercise. They're very rough, repetitive and hesitant, when they should be drawn following the ghosting method you've been using so far. Remember, NEVER repeat a line, no matter how unsuccessful it may be. The other thing is that your boxes are clearly not rotating (with their segments extending to a VP), except for a few. They should create a sort of circle instead of a square just like here. I advise you read through the explanation for this exercise again. Here's a guide that might help you.

Organic Perspective: Rough lines crop up again here (remember, all your lines whether straight or curved should always be smooth); but you're fine other than that. The perspectives in some boxes is wrong, but that's what the next lessons are meant to fix.

I think that you understand most of what this lesson asks you to do, other than a few trappings in the last sections. Before moving on you'll have to redo one page of Rotated Boxes and one of Organic Perspective. Rewatch the video demos and reread the lessons for things you might have missed, and use the ghosting method for every line. Don't worry, this is just a small setback, after you'll hopefully be ready for what's next.