Why does my incision look so uneven and lumpy after breast augmentation? (photos)

You are correct that the puckering, particularly on your left, is unusually severe. Maybe your surgeon needed to reinforce the implant pocket in that area with internal sutures. It can take a few months for those sutures to lose their grip on the tissues, so I'd be patient at this point, as frustrating as it might be. It should smooth out. Scar products or massage are not harmful, but will not help this problem.

That look may be related to swelling or internal sutures that usually dissolve with time. The scar usually flattens over time as well. Best to wait it out.