I think you did a great job with the drawing. It can't be easy to get the character profile right and make the body shape so realistic.
The step by step makes it really easy for us to follow how you got to that point. It's nice to follow the process from start to finish especially for those of us without any artistic abilities.
Yes, it is not easy work. I am working to improve my drawing skill making realistic rendering. This is not my best work but I am going to keep working to growth. and well, is very interesting see the whole process of illustration, I think people can value better a drawing when they see how is turned out. Thank for your feedback @niallon