Hi,

The lines exercise looks great. It seems like you get the concept well. With time and practice, eventually it'll get easier to hit the mark, but for now they look good. One thing to note is to start your mark while you are in motion and to end the park, pick up your pen instead of stopping, so that the ends of the line aren't thicker than the middle. It looks like you have done that for most of them, but there are a few that look like at the end the ink piled up a bit. The other line exercises look great, good job!

The elpises in the boxes looks good too. The only thing I notice is sometimes the elipse goes past the box boundary, but with time and practice that'll improve. The elipses look very confident though. Great mark making!

The table of elpises looks great. The first three rows are a little choppy and you didn't draw through your elipses twice, but the rest of them look great. The second page looks good, great job trying out different angles and elipse sizes.

The elipse tunnels look good, it seems you really got the concept. I don't really have any critique on that one.

Perspective-wise the cube exercises look good. You understood the concept well, and by doing the 250 box challenge that'll help you with accuracy. The only ting is the lines aren't as confident as your previous work.

For the cubes in a sphere exercise, the first row around look good, then that last row flares out a bit and doesn't curve in.

In the cubes in space exercise you did a great job making some boxes seem closer and some further away. That exercise looks pretty good. With the 250 box exercise you're boxes will improve.

I think you've got the concepts from this lesson down really well.