A cup before, 56kg, 5'7, 325 to 300, mod+, breasts too close but not symmastia, guidance needed (Photos)

The main problem is your pectus causing the breasts to tilt inwardly. If you go down in size, the breasts will not be as large and this tilt will not be as noticeable. Your surgeon can also tighten your medial pockets so the implants cannot shift medially as much as they do now.

You have an excellent result. How close the implants are too each other is not sissy’s under the surgeons control. It friends a lot in your underlying anatomy.. I would advise against revision

To make an accurate assessment on the outcome of a plastic surgery procedure we need to see a complete set of proper before and after pictures. While you’ve included good pictures, it’s not clear what the changes were from the second procedure. When posting pictures start by having a complete set of preoperative pictures, then a complete set of outcomes from the first procedure following by a complete set of pictures of the revision outcome. Label the pictures so we know which is which. it looks like your surgeon opened the implant pocket mediately to create cleavage for you. This may have been done excessively, especially considering the condition of your sternum which makes this worse.
There are generally three variables determine the outcome of breast augmentation surgery. The first is the patient’s candidacy for the procedure. You seem to have been an excellent candidate for breast augmentation surgery. Your breasts are fairly ideally positioned on your chest wall, and you have minimal divergence. The breast are fairly equal in size and shape. The second variable is the choice of implants which includes size shape, and type. The third variable is the surgeons ability to place the implant correctly. considering that your breast diameter is somewhat small, and that your frame is narrow, using a smaller implant is probably wise. A lot of women want cleavage, and it’s far more common to have patients complain of the implants sitting too far apart, which is often due to the patients inherent anatomy or candidacy for the procedure in the first place.
I think you need to ask yourself if you want to go through another procedure to try to correct this. It’s not easy to treat symmastia(you don’t have it but the treatment is similar) or to close the pocket along the medial edge.
Sometimes it’s better to cut bait and live with the outcome.
Follow up with your surgeon and share your concerns with her. See what she has to say. You may then want to consider getting some in person second opinion consultations from other providers in your community. For second opinion, consultations come prepared, bringing with you a complete said of before, and after pictures for each of the previous procedures, operative reports and consultation notes, especially regarding the indication for the second procedure. These are all part of your medical records, which you are entitled to, by simply requesting them from your current provider.
Good luck,
Mats Hagstrom, MD