Lines are p confident in general, though they get a slight wobble at times. Don't forget you should always prioritize confidence over accuracy, even if the line ends up being off.

Same goes for ellipses, they have a tiny bit of wobble. Focus on making them as smooth and confident as you can and don't worry about sacrificing accuracy.

Boxes are p good in general though you're repeating some lines, no matter how off a line is, don't repeat it, keep going as if it was correct.

On organic perspective, you can clarify after the overlaps by adding a confident, drawn with the shoulder superimposed line. Perspective on them has issues but you'll work on it on the box challenge, so don't worry about it!