I love these cross-contour drawings. They are carefully made and have a 3d look to them. I think you could simplify the lines a little more. One trick I like to use is to find the longest axis before I start wrapping the lines. This will give the different forms and more cohesive look. Keep practicing drawing things from different angles. You will learn so much from this exercise. Thanks for sharing.

Great job with these, they look awesome! I think you could improve upon them even more by simplifying your lines and looking for how one form flows into another. I noticed that some of your shapes are the same width all the way through. Instead try to look for where a shape tapers or widens. Look for where flow branches in multiple directions or when there a sudden switch in flow direction. You can try imagining arrows branching off from the main line of action like in the image below. Using your whole arm to draw tapered strokes can help you "feel" the gesture more and also don't be afraid to use some looser searching lines before committing to a darker stroke. Your drawings are great and I hope this helps!