Hi Gonzalo, Remember to tick the 'Post as help request' box when you're posting stuff. It's easier for people to reply and it's also flagged as 'asked for help' so you're more likely to get feedback. The drawings look good. It's clear what the model's doing with their body which is great. The only thing I'd suggest is to watch Stan's gesture videos a few times and note the kind of lines he uses, specially for limbs. He has some good tips about avoiding 'snowman effect' and how and when to use C curves and S curves etc.

Be sure to include hands and feet, and to indicate viewing direction!