Her pose much like your other submissions is a posed shot facing the viewer which is getting repetitive and is sort of showing lack of creativity. It all begins with gestures, movement adds both vitality and intrigue. I'm talking about REAL movements like: kicks, swan dives, pirouettes, and cartwheels. Try something new.
As for the piece being of discussion on the Art forum, you decided once again to disregard advice and never bothered to even ATTEMPT to step out of you comfort zone. The shading is muddy and the background is trying to support the image but in reality ruins it even further. A background complements the subject, never makes the subject.