Hasn't dropped yet, should I worry? I'm 3 months post op. (photo)

Thank you for sharing your question and photographs and I am sorry to hear of your healing difficulties.  Because of the protracted healing in your right breast I would advocate allowing at least six months to pass after surgery before seeking any necessary revision.  The most important current observation would be to ensure no infection is present.  Talk to your surgeon, they are your best resource. 

Don't panic. It may take another couple of months for your right breast to drop. As long as it isn't hard to the touch, I think you'll be fine. Asymmetric healing is common. If you are still concerned at 6 months post op, see your surgeon to discuss options. Best of luck.