Art School - Week 1 - Negative Space - Homework

Thanks a lot to @beekart for making such a creative and interesting idea. I really loved doing these exercises. I am very inexperienced in drawing and your video and post has made it much easier to learn. I hope you can help better my drawing as we go. Thanks once again and here are my drawings.

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Blind Contour 1:

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Blind Contour 2:

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Hands:

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I know some of them are quite bad but it was still fun doing them. Let me know what I could do to make them better thanks.