In my opinion the window is just way to blown out. I like the tile color & the brown of the table leg working with the models coloring. I'm not seeing bad haloing but I'm using my nexus 7 thus a small screen @ the moment.
Not one of our best in my opinion. Choice of location not optimal with the high light ratio from the window making it really difficult to get a good exposure in and out without additional lighting. I would have changed the composition, waited until the outside wasn't so bright, or used a faster shutter and lighting. Also, the haloing is really noticeable where you dodged around the model. I love most of your work, but this one is not so good.