10:56 AM, Wednesday May 25th 2022
Great job on completing this challenge!
Here is your feedback:
Extending lines: you extend them all in the right directions and use different colors. Very clear, very clean. Great job! The only thing is that sometimes the extended lines don't 100% follow the lines of the boxes like the purple line of the back corner of box 249. Because you extend the lines to check whether the lines of the boxes are correct, these do have to follow your fineliner lines closely.
Convergences: all of your lines converge. I don't see any diverging drastically. You did very well on this. Sometimes I do see that the two lines in the middle of the box tend to go parallel to each other, while the outer two lines converge. This doesn't happen always, however, but it happens on two sides of box 247 for example, and they don't in box 245. Note that the two lines in the middle will only go near parallel if they are very very close together. What could help is this: first look at this image, I'm going to use it to explain: https://imgur.com/a/DHlA3Jh .
Imagine that you are drawing this box and you have just finished step 3. Now you want to draw step 4: the back corner. Don't make the line parallel with the blue lines (initial Y) immediately. Instead, ghost over the initial Y again, but backwards; that is, follow the top left blue line of the initial Y into the box and towards the green lines, and see how close you get to the green corner. If your hand practically goes over the green corner, you can draw the black line coming out of the green corner pretty much parallel with the blue line. If your ghosted line goes through a green side instead, make sure that the lines you draw in step 4 converge with the blue ones and all of the other lines going to the vanishing point you have in mind.
Hatching: I don't see any hatching on your boxes. This is optional, so that is all right. It could help with clarity and knowing which plane faces you, but I don't think there is any confusion, so this is all good. If you do hatch, however, make sure to put just as much intention and focus on every single hatched line as you do with the lines of the boxes themselves.
Line weight: I can't really see whether you put line weight on the boxes. Either you were extremely accurate and went over the first lines exactly, or didn't put it on. Make sure that the line weight is subtle, but noticeable, and only put it on the silhouette, not on the initial Y or back corner.
Confidence: your lines are very confident and very straight. Great job!
Orientations: your boxes are mostly oriented in the same ways, and just have different shapes. Try to use this image as inspiration for different orientations: https://imgur.com/Kqg6uMX
also, your foreshortening tends to be quite extreme and your convergences quite sharp. Make sure to also do some boxes at a more shallow perspective.
All in all, very very good boxes! I just want you to practice your shallow perspective a little bit more.
Next Steps:
Draw 15 more boxes at shallow perspective (subtle convergences) and with more orientations, and try to add line weight a little bit more clearly to them. You can hatch also, but this is not required. Add your revision pictures in a comment to me, and I will look them over and mark your challenge as complete!