3:54 PM, Wednesday August 4th 2021
While we don't force students to redo the 250 box challenge in full, we do ask that they do at least 50 additional boxes after receiving their official feedback/completion for lesson 1, so we can see any such feedback applied in them. When you've done the additional 50 boxes, you can submit them alongside the original 250 boxes.
And, of course, you will need to do Lessons 1 and 2 over, as you mentioned.