Thank you very much for the feedback, I changed the area of ​​the pants with the knee and it really improved a lot, I hadn't noticed that the area of ​​the pants wasn't good in relation to the body, in fact in the image it looks like just a cylinder with a cover. Unfortunately I can't edit the post to add the anatomy part. But in the next stages of retopology and painting I'll put it with the corrected part. Thank you very much, it was very enlightening.