2:18 PM, Saturday February 20th 2021
Hello and good job on finishing the challenge.
Your improvement is clearly visible through the challenge. Especially with the divergence of the lines to the back, you got way more stable at them. I have a few overall things that could help.
You still have some wobble in your lines, doing some more of lesson 1 line exercises in the warm up could help and try more ghosting on individual lines.
If you want to make it look more cleaner and technical (if you mean that with more realistic) try to stick with the same degree in the hatching on all boxes and try to hatch only the same side.
And definitely add some line weight to your boxes, it helps the look overall and its more practice so a win win in my book.
On the rest you did a pretty good job.
You can go for the Additional Box Exercises if you want to get a better hang for them.
https://drawabox.com/lesson/250boxes/2
And good luck with the other lessons.