Hey there wyxorz, congrats on finishing the 250 boxes! This is no small feat so take a minute to bask in the glory. I'll be your TA today so let's get right to it.

Your boxes started off on the right foot - your lines were confident, your hatching neat and thoughtful, and your sense of perspective wasn't too off. You drew your boxes at a nice scale so your brain had plenty of room to puzzle through the challenges as well as so you could draw your lines confidently. You varied your orientations and scales a decent amount and I'm pleased to see the work you put in with some of the advanced box exercises. Overall you have grown a lot through this challenge and have done a good job in improving your sense of space and form.

In terms of your convergences, you're off to a pretty good start but there's still some room to polish your approach. This infographic that uncomfortable made is to help illustrate how we should be looking at parallel llines in persepctive, not only in our boxes but for everything. The core principle here is that all parallel lines are a family related to one another by the vanishing point. As the VP moves, the relationships between these lines change, manifested in the angles between said lines. As the vp moves further away, angles get smaller and vice versa. This means that you must take into account all parallel lines simultaneously as you put them down, both drawn lines and ones not yet drawn. For example, students often start out boxes by drawing a plane, making sure it's all nice and converging right, then moving on to the next plane. The error happens when they don't take into account the previously drawn lines as they make their next plane causing two points of convergence instead of the one vp. It takes time to learn to "step back" and consider all lines in tandem, but as you practice it will become more intuitive and things will fall into place.

Your lineweight here is pretty good, although there are some times when you could have a bit more constrast in weights of interior vs exterior lines so keep that in mind.

Your challenge will now be marked as complete, good job! Your next step is lesson 2. The next few lessons are very organic so be sure to keep boxes in your warm ups so you don't get rusty. I also advise students to try drawing larger boxes at the scale of one or two per page to prepare for lessons 6 and 7. Boxes at this scale have their own puzzles to solve so it's nice to get a jump on it. Keep up the good work.