Cream and blue work great as a combination, good choice of background colour.
Great job on the hair, not an easy thing to get right!
I like the flower line across her back. The only thing I would have added is something below that flower line. Maybe the hint of a robe, or the top of her arms, just so it doesn't stop at the flower line. (I wouldn't work all the way to the bottom edge of the page, just a little way below the flowers, that's all)
But that's just something small, I like this image, great job.
Thank you very much for your critique! And I completely agree with you, I should add more to the picture. At first I actually tried to add some sort of clothing under the flower line, but I tried all the way don't to the edge, and it didn't look good - so I guess I gave up and just left it like this.
Again, thank you so much for the critique!