The perspective and dynamics of this piece are very professional, and frankly, awesome. Even if I didn't know who Korra was, this would have drawn me in more than any other piece I have seen for a while. It's amazing, and I wish I could have it in a very large size on my wall.
in your mind just paste all the praise from others here and let me go on: her herīs actually pating at the other side of her head... but that just as a fun fact.
the one thing i yould like to criticise tho is, that the water does look rather like liquid metal - quicksilver or something alike - than actual water. mainly because of the very precise reflections of korra. maybe water would reflect her more diffuse? dunno exactly.
still thsi does not in any way oppose that this is a great picture ;D