Hi Slyx, Congratulations on completing the challenge!

You did a good job on the challenge, I can clearly see how your line confidence get's better as you progress through the lesson, also you start making bigger and better boxes! Though, there are things I wanted to talk about.

First of all, you are telling me you are having issues with the back corner, check this way of construction next time you are warming up with some boxes! It will help you see the construction from another perspective (pun intended).

Now, let's talk about line quality; as you started the lesson you made pretty wobbly lines, this clearly got better as you progress through the challenge and gain some confidence and practice, though you fell into another issue that you commented on, arced lines. This common issue has various sources:

• Not drawing from our shoulder: As you probably already know, because we are using just our elbow or wrist, we have less angle of motion to make straight lines, what the shoulder provides is a wider range of action.

• Drawing too fast: Wobblyness comes from slow, unconfident lines, well it can happen that we go the other side of the spectrum and we start making marks too fast and is almost like we lose consciousness of how are we executing our lines. Now, finding the sweet spot in the middle where we are doing long, smooth, confident lines, with your speed, it's easier said that done as you are probably thinking, so take it easy, always apply the ghosting method, keep practicing, and you will get better.

Good job applying line weight all through the lesson, people usually just forget about it, or are just too afraid of messing up the line weight and ruining their boxes, not your case though! However, remember that is supposed to be subtle.

One thing that I'm noticing that you did during the challenge is trying to correct your lines with more lines, don't do this, it just makes everything look more messy. Also, this is another reason why you need to apply the ghosting method, you have to put the effort before the actual line, rather than doing a bad line and trying to correct it later.

One last thing, there is way in which you can figure out the convergence of the lines, by observing the relationship between lines. By seeing all your other lines (of one vanishing point) and observing their angles in relation with the vanishing point, you can start guessing how converging your next lines should be, by seeing your other lines.

Now, I know how messy it sounds, so check this diagram if you don't understand, and if it's still not really clear check it once in a while, it will click eventually.

Now, I'm gonna mark this challenge as completed! Keep it up.