I'm not to sure about the blur, It does make the corset look really cute, but it takes the focus from her face*, and shoulders. It would have been nice to see more detail in the corset, and maybe just a few spangly bits? I don't know if it's the effect you're going for, but because of the blur she seems to be lost in the pink background. Don't get me wrong I like it!
*I think I would have created more of a contrast on her face & hair, just to bring out her features more, they just seem a little flat.