Hi Chuchuy! Congratulations on finishing this challenge, that's huge! I'm Gady and i'll be reviewing your work, so let's get to it.

• Extending lines are mostly in the proper direction, so that's good.

• I noticed a consistent problem with your convergences. Almost all of your lines are diverging or parallel. A box in 3 point perspective will ALWAYS have their lines converge. They can never diverge, or be parallel. It is possible for them to converge very slightly, but they have to converge, even if it's really hard to notice it the convergence has to be there. This is really getting in your way of making-believe boxes are in 3D-space.

• It's good that you chose to draw hatching lines, as they will add up to your mileage, but it seems you were in a hurry making them, as they all curve and fray on both ends. Just like in lesson 1 ghosted lines, you should place carefully the pen at the start of each line (in the line of the box) so it can only fray in one end in the worst case. And you should really take the time to get a confident straight line, as your curved hatching lines are not making you a favor.

• Lineweight was not something you explored. As a result, all the lines of your boxes look the same, no matter if they are visible or not. Just like in lesson 1, lineweight should only be added to the contour of the boxes, and with a superimposed line, one is enough, as it's important to keep it sublte. When doing this superimposed line, it should be done ghosting and drawing it confidently, having it lose accuracy is acceptable, but having wobble is not. As always, confidence > accuracy.

• I wouldn't say that your lines are wobbly, but they are definitely arching. You should practice drawing lines, and if you can't get them to not arch, try consciously arching in the opposite direction with your arm to counter balance it.

• I don't know if you noticed it, but almost all your boxes are pretty much the same orientation. Try to get more variation, in size, rotation and proportions of the initial Y. Here's a diagram that shows different orientations of boxes, so check it out to get some ideas. Keep in mind that in the box challenge you should always draw from imagination, not from reference, so don't use them to copy. https://imgur.com/Kqg6uMX

• Well, most common problem with 250 BC is of course the inner corner. It's pretty normal to have the inner corners come out pretty off, as they are affected by the accumulation of previously done mistakes. I don't know if you've had the chance to check it out, but this method is really helpful for nailing inner corners https://imgur.com/a/DHlA3Jh

Okay, so it's awesome that you could make the 250 boxes, that's already a lot of effort and it requires a particular mindset that fits within the spirit of Drawabox. However, I have to be honest and say that it seems as if you did not take the proper time to craft each box according to the instructions. So, if you don't mind, I would reccomend a little revision.