27 y/o, 5'3, 118 lb 3/13/15 Sientra high strength cohesive gel HP 355 cc unders with crease incision

Hi everyone! I'm 27 years old, married with no kids, 5'3, 118 pounds and I have had a pre-op consulation where I finalized all the details for my BA surgery coming up. I'm going with Sientra high moderate profile 355cc gel implants placed under the muscle. I originally told my surgeon I wanted a full C cup but was also ok with going into a small D as well. My main goal is to look natural but busty. I want strangers to look at me and think, "Wow, she has a great rack!" rather than "Wow, her boob job looks great!" if that makes any sense.
I have read up on many women's testimonies and a lot of those who have body stats similar to mine have gone with anything from 335 cc's to 450 cc's. I asked my doctor if there was any way to go with a higher implant volume and he said that the highest I could go based off my BWD is the 355 cc size. I'm worried that I'm going to end up with something really small and be unsatisfied with the results. I don't want to look fake but I do want my chest to be noticeable. Am I worrying for no reason?! Anybody else ever been in this situation? What did you end up doing?