generally these are fairly good for the most part, and impressive for a week, though it shows later on with your boxes. the vantage points on your perspective excorsises especially. the vantage point is supposed to be two paralell lines that make a side of a box. i might suggest redoing one page of plotted perspective, especially if you have a ruler for the vantage point lines, which is required for that excorsise, as it looks like you might not have used one either?

also a good tip when drawing boxes in general is knowing they are essentially four sets of paralel lines, and to 'realize' 3d space faster if you rotate the canvas/pages. worked for me after a good amount of practice, which will be the 250 box challenge when you get to it

ghosted planes look pretty good, as do most of the elipses, but another good tip for the future is ghosting more before you put your lines down for them to keep them within, as some are leaking out. rotated boxes and organic perspective are always difficult first try, but its a good idea to try them again 'as a warm up' for future progest and drawabox work later one, likewise with ghosted planes with elipses before doing your 250 box challenge.

some last things is also to keep your lines solid with one stroke, as i can see what seem to be 'continuations' with some lines in some boxe. dont worry too much about archs and slight wobbles for now, as early one confidence is more important. another tip, and i found this out by messing around and watching my sharpie, raising my elbow and having the second knuckle of my pinky as a semi 'anchor point' did wonders for doing full lines. see if it works for you!