I really like your work! Maybe next time try drawing out your basic shapes on one layer with a different color and turn down the opacity then draw the final on a different layer. When you use traditional you can lay out all the shapes lightly and then draw over them hiding them while when your using digital all of the lines are solid and bold making it hard to read. So either try using a different brush or lighter color and then do the final sketch on a seperate layer. This will make it much easier to read and it will help perspective because your starting shapes wont muffle together with the depth of your actual drawing.
I think you are doing a great job so far! Your figures dont feel stiff and they all have a really nice flow like they are actually moving. Just make sure not to stay to safe when it comes to drawing if you want progress. Draw a sloppy pose, try drawing the same pose from different perspectives, dont be afraid to make something that you think wont turn out well or is to difficult because the worst that can happen is that you have to work on it meaning you have the most room to improve and become a better artist. In short just dont be afraid to push your work because if you want to show progress and improvement you are going to have to move out of your comfort zone sometimes.
Tracing can get your hands used to drawing certain shapes and help with the flow of your drawings when you go to draw later on. While you shouldnt ALWAYS trace your references tracing to get the feel and flow of a drawing can be really helpful! Especially something that you might be uncomfortable with, tracing can help you grow and allow you to be more comfortable with drawing things free hand in the future.
