I had a bilateral mastectomy followed by tissue expanders, why would my surgeon go bigger than I wanted? (Photos)

I agree, they are too large and laterally displaced.  Given the fact that you expressed those concerns preoperatively, I would seek the opinion of another BS PS to give you some options.  Your issue isnt as easy as just down sizing.  Redoing the pocket is needed as well.

Good Afternoon, thank you for sharing your experience and picture. Communication between patient and surgeon is crucial to avoid these situations. We usually do expansions until we accomplish the size that the patient is happy with and then we choose the implants accordingly.

I think that there was a communication error between you and your surgeon.  I always ask my patients that at what point when I am filling do they like the volume.  I usually go with that volume.