I felt like this subject had good flow to it. Where you seem to be lacking is on the right side of the neck, your line where you have an elliptical gradient, I believe needs another complementary ellipse. Also, the bright ellipse just to the lower left of her chin somewhat detracts from the detail in her lips. If you were trying to emphasize the eyes more, then this was not that big of an issue. I also feel like the tentacle in the background, left, sticks out a bit as a bright object, but this can be fixed with a .5 pixel blur, for depth.