Great idea... but I think that the pose could have been pushed even more.
While the textures and set up are great, and the lighting fits the mood well (if a little cold), from the pose it's clear she's lying down. Although here it's a general lack of dynamism, I think a better idea may have been for her to be stood on the right hand plant on tip-toes, reaching up towards the ball, across the frame.
This isn't a major problem, but I think the dress is too noisy and distracting as well. Having her in all-white would have been more powerful.
The colours feel a little flat, certainly a warmer white balance would help as well as a boost on the red and green saturations. This may well be the monitor I'm currently on, though, so take this advice with a pinch of salt...
The geometry and composition are amazing though - the tiles are absolutely perfect for this kind of shot, for making the few elements really stand out against the grid and emphasising the flow o the plants and the movement of the subject/object.