Your results are quite good and we should all be so lucky. Rippling is an inherent property of implants. Overfilling a saline implant (above the amount listed on the box) on the other hand can be unsightly & doesn't necessarily prevent the appearance of rippling. Although all implants have some rippling saline implants have the most and cohesive gel have the least. I do not believe your rippling is due to overdissection of muscle.
The rippling becomes visible from the outside when the implant has more of it and the tissue between the outside world and edge of the implant is thinner. That is why saline implants are usually placed under the muscle. Despite that rippling along the lower and outer edges of the implant are still a possibility because the muscle does not extend down to those areas. You probably have rippling on the upper part of the implant as well it just does not show because the tissue is thicker (the implant is also covered by muscle here).
The questions then are is this bad enough to do something about it and will it get worse with time. My personal opinion is it is not bad enough to do anything about it now unless it really bothers you. Will it get worse over time? Probably but that time frame could be quite long. My personal opinion is no breast implant patient gets only one operation and the time between operations should be as long as possible. If/when you get your next operation your best bets are probably switch to a cohesive gel implant and/or place an acellular dermal matrix to thicken the tissue in the lower inner quadrant of the right breast and make the rippling less visible.
My response to your question/post does not represent formal medical advice or constitute a doctor patient relationship. You need to consult with i.e. personally see a board certified plastic surgeon in order to receive a formal evaluation and develop a doctor patient relationship.