6:19 PM, Thursday April 28th 2022
Unfortunately you're still running into issues.
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Box 1: You've got the red lines coming towards the viewer.
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Box 2: Correct
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Box 3: Red lines coming towards the viewer
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Box 4: Red and blue lines coming towards the viewer. Alternatively we could reverse how we interpret the box, but that would simply result in the red/blue being correct, but the green lines coming towards the viewer and the box looking kind of wonky, so I don't think that was your intention.
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Box 5: Correct
The technique that Tofu linked you to previously, which uses the original Y we established when starting each box is, if applied correctly, pretty hard to do wrong. It doesn't mean you'll necessarily understand the idea of which direction is "away from the viewer" and which direction is "towards the viewer", so it's not a perfect solution, but it does give a recipe that can be followed to at least give us useful lines upon which to base our analysis of our results.
Here's a markup of your 5 boxes, identifying the original Y for each box, and where your line extensions are correct, as well as where they're incorrect. I hope that helps - but beyond that, all I can really ask is that you go back and read through the section on this approach Tofu provided earlier and ask you to follow those steps more closely.
Please submit an additional 5 boxes, in reply to this feedback.