Gesture practice

don't do what you think it is like, instead just look at the image and do what you can see it is like. Don't worry about time or perfection. I remember when in a video someone said somenthing like "you're here to learn, so just do a simple line and then take the time to see what's different between your practice and the image."
I higly recommend you to avoid using the eraser during the practice and just let it be a mess, you must see what you think you should avoid during the process and try to internalize it.

Simply great work on the legs , u could use a bit more practice on the upper body ^-^