I think the picture would've been more helpful if the model wore sweats instead of leg concealing skirts. I know I and some others have a hard time with the appendages and models who show where the leg are when bent a certain way are more helpful.
There are some shots I will do for drawing refence stock, and some that I will do for photo manipulation. I must admit that a lot of my shots are aimed for photo manipulators because I love working with costumes.
At the end of the day, this picture is more for those wishing to use it for stock in photo manipulation because it is a costume shoot.