I love the flow of the dress and the swirls of her hair. They help to convey that this is a dynamic character. Are the pink specks at the bottom also suppose to be butterflies? I can't make out the detail.
I really like the use of watercolour here. It looks wonderful!
The only thing that's a bit off is that I think that the body may be a bit too thin and tall. However, this depends on where you drew the hip, and that's a bit ambiguous to me.
According to the shape of the legs the hip seems to be just below where the ink cloth curves up, and that is too far from the shoulders. Ideally, it should be at the top of where the pink begins to curl way from the body. If it's not the hip, then it may just be how you painted the legs. ^^: