Hi Wyvernall, and welcome aboard. Good job reaching the end of Lesson 1 and working up the courage to submit your work for critique. It sucks to have your mistakes pointed out, but it's also necessary for growth. Since the lesson comes in three parts, I'll deliver my critique in the same way.

Lines

Your Ghosted Lines are looking pretty good; your linework is fairly confident and I'm not seeing much fraying at the starting point, so you're clearly taking care as well. There's a little bit of wobble in the lines but you'll iron that out with practice (and based on your later work, this is already coming along nicely). Your Plotted Lines and your Ghosted Planes are looking good, with lines that are both smooth and accurate, and no sign of repeated lines.

Ellipses

Your Ellipses in Boxes are quite good as well. Your linework is very smooth and, while there are places here and there where your ellipses overal or spill out of their boxes, you've clealry grasped the basic principles and should be able to eliminate these minor flaws with practice. You're also drawing through all of them two or three times, which is exactly what we want to see. (Twice is best, so doing that consistently is a more advanced goal to work towards.) All the same stuff applies to your Ellipses in Planes and your Funnels, though for the latter I would add that a more pronounced movement from wide to narrow ellipses would be good, so this exercise might be one to practice in your own time. Remember also that the minor axis should cut each ellipse neatly in half (you've done this well here but it could be perfect with a small adjustment, so it's really something to bear in mind if you take another stab at this exercise).

Boxes

Your Plotted Perspective is okay, though it might have been nice to see the hatching lines on the latter two frames as well. I also notice that your correction lines don't converge as neatly as they might, so it's not 100% clear where your vanishing points are. It's important to take your time over every line, even when working with a ruler. Your Rough Perspective excercise is quite competent; I'm seeing more of that nice, smooth linework and you've done fairly well keeping all the sides of your boxes parallel/perpendicular to the horizon. Your Rotated Boxes don't show quite the same level of care in that regard, and there are some repeated lines (although if these are supposed to show depth that's fine, but the addition of some hatching on the faces that aren't pointed directly at the viewer might help more) but you've done well tackling the core challenge of the exercise. None of your boxes are rotated wrongly and you've kept the spacing nice and tight as instructed. Lastly, your Organic Perspective is looking pretty good; you've plotted your lines and drawn them carefully, and your perspective is where we would expect it to be at this stage. You could add a sense of depth by thickening the lines where one box is in front of another, but this is still very good overall.

All in all this is a good effort with no major misteps, so well done.