Repairing uneven contouring, loose skin, and low nipples after FTM (transgender) peri-areolar breast removal? (Photo)

There are ways to improve your chest.  I would most likely use a peri aereola approach to tighten up the skin of your chest area.  You would have a this incision around your aereola.  It is discrete and effective.

It's usually suggested to wait 6 to 12 months depending on the reason for a #revision and it's still early in your healing. The ideal technique best for you is difficult to determine online by photos alone. There are several methods used which depend upon the patient’s breast or chest #size before surgery. Considerations include the #laxity of skin, the #size of the #areola, the amount of #fat and recent weight #gain or weight #loss. 
The most common procedures include the #periareola, #buttonhole, #double incision, and #anchor patterns. I often use #liposuction along with the double #incision for larger breasts, and, some variation for smaller breasts; depending upon the position of the areola. The female breast nipple and #areola are often centered on the breast. However, the nipple and areola are lower and closer to the outside edge of the #pectoralis muscle in the male patient. Shaping the side of the chest may also be required and can be performed with #suctioning; along with contouring of the muscle, as noted above, to provide the best definition for the chest. A board-certified plastic surgeon with specialization is such breast procedures will #confirm the technique best suited for your revision during an in-person evaluation. 

I appreciate your question.The best way to assess and give true advice would be an in-person exam.Please see a board-certified plastic surgeon that specializes in aesthetic and restorative breast surgery.best of luck!Dr Schwartz