Hi Miguel. Better late than nothing. I think you are doing it great. I think you could simplify more the anatomy and parts of the limbs and try to be centered more in flow than flow and mass. But it works perfectly right as you are doing here. Keep it up!

Try and find variation in lines. Combine straights with curves to create more contrast. My first thought though was that you could try to use fewer lines to communicate the gesture. Using so many lines suggests to me that you could spend longer observing before you draw. Nice work and keep it up!

Hi Miguel! Really like the proportions of your drawings! I think it would be great to give the linkes more "flow". They look very sketchy and partly too detailed for a gesture drawing. This distracts a little bit from the overall frow. Still very good drawings! Keep up the good work! :)