One implant larger than other? (photos)

You do appear to have asymmetric breasts which can be due to different breast sizes to start with or from overfilling an implant. You look pretty right now so I would let some settling occur and see where you are in a few months 

It seems as though your right breast preop was larger than the left. This should have been noticed preoperatively so that two different implant sizes could be place( a smaller implant on the right side and the larger implant on the smaller side). In any event, after 6 months, you might want to discuss placing a smaller implant on your right side. You should discuss your concerns with your surgeon.Best wishes,Dr. Ravi Somayazula