The body looks really good. One thing I noticed is that the Groove in the spine and to the crack in the butt are not usually connected. There is a spot that form a triangle flat spot on the lower back of a women. The piont of the triangle aims down. By the way. Is that you in your avatar? The natural form of the body leads me to beleive you are a women, even though you have not said. By the way. What are you going to have exposed? It helps top give you advice. No reason to work on definition where it will be covered with cloths.