Great, good start. I like that you try to immediately see light and shadow, but I see that you lack some general understanding of forms. It seems that all the parts are separate, I would recommend trying to play with the figures.
The main thing is not afraid and boldly continue to study. Take your drawing and try to recreate the same image using simple geometric shapes. It's fun and very educational.
Thank you very much. I will take your advice, and your examples are helpful.
The legs are a bit short and the arms are long, but overall this is really impressive! I would recommend starting with a loose and light contour drawing so that you get spacing right before committing to darker lines and then shading
Thank you, I appreciate the input.
It seems you've rushed past proportion. My advice would be, to increase the learning value of these practice poses, take some of the time you are currently using on "finishing touches" like shading and spend it instead on underlying structure and measuring proportions. I know that shading is fun and feels like a way to improve a piece, but when practicing, don't focus on improving the piece -- focus on improving your own skills and understanding. Practice drawings don't need to look "finished" or presentable to others. But they will help you improve the work that you DO make for sharing.
Good work! Keep it up!
Thank you, I certainly will do that.
As others have said, the proportions are somewhat off. I would add that you might want to check an anatomy book or two-- when the figure is skinny and the muscles/bones are more visible, it can be really helpful to see where everything is connected and studying anatomy will also help with things like placement of the belly button and breasts. The head looks really good but when you are drawing the whole figure it is not usually worth your time to make the face super-accurate.
Thank you very much. There's an old anatomy textbook lying around; I am going to dig it up. I was attempting to use the lighting to help me render the muscle positions, but I really am just starting out. So a little all over the paper, no pun intended; I will get some additional references.