Hi, wickerhat. Good job on finishing this tough challenge.

I don't know which paper size you used for this challenge, but if it's the recommended size, I must say that 4-6 boxes per page is what you should have aimed for.

After taking a look at your work, I must say that your improvement regarding the perspective is very noticeable throughout the challenge. There is definitely still room for improvement, but your converging lines are better by the end of the challenge.

The main aspects than concern me is your line quality (as you've stated). In many occasions you are going over the same lines more than once. You need to avoid doing this as it defeats one of the purposes of using ink, which is to plan your lines well. Plot your lines with dots, ghost them and draw with confidence. Not all lines will look good, but embrace the result and, when it's not so good, keep it in mind and do better next time. Don't try to cover your mistakes by drawing over them. If you keep going over the same lines you might end up getting used to it and get sloppy on your planning. Even by the end of the challenge, your lines are suffering from this aspect.

I'm also going to recommend two thing it might help on getting your work cleaner, especially if you'll keep using these colored pens:

1. Use the darker colors for your main work. Here, you should have used that dark purple (or even brow/dark gray if you have them) on your lines. Keep the lighter colors for the extended lines are other similar marks.

2. Don't write directly on your work. While it's OK to take notes, being too excessive with it can make your work distracting for those who will see it. Also, in this specific challenge, avoid writing directly on the boxes. Keep your main work as clean as possible.

Anyway, I've marked this lesson as complete, as I think you can move on to the next lesson.