Interesting photo but for me, personally, her legs are too rigid. I mean, it looks like she's doing the cancan. Though, the model has got the pointed toes and the position of her arms and head are nice - but I really dislike the legs. Overall - well done, beautiful photo!
Do you dance? I'm guessing no. Many, many dance styles teach moves involving very straight legs. It's technique, it's skill. Grace isn't just about being bendy. Grace and beauty are about taming the raw energy, harnessing it and directing it. I'm not sure if the model actually has a dance background but she has great points, carriage, and turn out, and demonstrates the beauty of good technique. The fact that her legs are so straight and sharp and scissor like is actually desirable from a dance perspective. It shows good form, technique, and discipline. Trust me if you saw irish or ballet dancers with bent legs, you wouldn't be impressed.
Don't mean to sound too harsh on you here, but the title is "ocean dance" not "ocean pose", so I really think that to be in any position to critique the models legs...you should probably have a strong dance background, since she is supposed to be dancing. I suppose to a non-dancer, some things may seem a bit odd, but when you see the alternative, you realise why dancers are taught to perform in a particular way - otherwise it looks awkward or shabby.
Also her centre of balance is too far forward for the cancan. Any sort of high kick would look wrong since she's leaning forward a bit. She's clearly either moving forwards, or in a circle.