Hi

Firstly for the superimposed exersize: i see that your lines sometimes curve upwards, especially when you have longer lines. This can either be because you are tethering from the elbow or just doing it subconciously, most likely the latter. if that is the case then try to consciously arch other way. Another thing i want to add is that you do have some fraying on both ends for 1 that i noticed. try to keep in mind where your first dot starts. https://imgur.com/a/exyEBQ5

Next for the ghosted lines exersize: i see that you do have a curve or two, again it's probably just a subconsious thing otherwise your tethering from your elbow instead of the shoulder. Another thing i want to add which is pretty minor in your work is that i see that you slightly lost confidence and tried to curve the line back to where the dot was.https://imgur.com/a/wjNFGce

for the ellipse planes: i just want to put this in although it isn't on the critique guidelines. Sometimes your lines do lose confidence i've marked some out through the imgur link. Don't worry too much about accuracy and instead aim for confidence. https://imgur.com/a/24OhqYY (p.s. i used the word wobbling, i meant arch on that note.)

for the ellipse tables: although i can't mark down every single overlap, i can say that there are a few. each ellipse should be kept within its box and shouldn't go over one another. The most noticable one is in page 2 far bottom right corner where there are quite a few overlaps.

For the funnels exersize: sometimes your ellipses don't follow the minor axis, they should be cut through the straight through the middle making 2 symmetrical halves. https://imgur.com/a/xpjCW1G

for the 2 plotted perspective exersize: i just want to note one thing. In page 1, table 1, bottom middle box, your Y lines ( height lines) should always be perpendicular to the Horizon line

In the rough perspective: sometimes you'll draw lines twice, for instance page 1 table 3 far right box, you've attempted to draw the back lines twice. never repeat a line, no matter how off it is, you just have to move on from the line, remember to always put confidence over accuracy. if the line misses then it's no big deal, just don't go over it again! Another thing. in page 2, 1st table, middle bottom box, one of your back x lines (width lines) isn't parallel with the horizon line.

For the organic perspective exersize: your page 1 last box has one line redrawn to correct its course, don't worry if you got the box wrong, again if you have plotted the wrong line, don't bother going over and redrawing! Also, when adding line weight, don't add line weight to the whole line, instead do only the section that overlaps. i.e. https://imgur.com/a/NZl6hGm, i went over the lines sloppy but i hope you get my point. also i see actual wobble. remember to always put confidence infront of accuracy.

That's all from me, i might have missed something, if i did then i'm sorry. I also am sorry for my terrible hand writing, and hope those imgur links work.