475cc high silicone implants too big? (photos)

I have a patient scheduled for high profile 475cc implants now, she is 5'9" and is a robust woman. Using a tight bra to try on implants and the Vectra imaging 3 dimensional system can help you visualize what you may look like.

Thank you for the question and pictures.  It is not, in my opinion, helpful to you to compare yourself directly with another young lady when it comes to goals/ outcome achieved with breast augmentation surgery.  The results achieved with the identical implants, utilized on different women, can be quite different.  There are many variables involved; all these variables matter. Generally speaking, the best online advice I can give to ladies who are considering breast augmentation surgery (regarding breast implant type/size/profile selection) is:
1. Concentrate on choosing your plastic surgeon carefully.  Concentrate on appropriate training, certification, and the ability of the plastic surgeon to achieve the results you are looking for. Ask to see lots of examples of his/her work.
2. Have a full discussion and communication regarding your desired goals  with your plastic surgeon. This communication will be critical in determining  breast implant size/type/profile will most likely help achieve your goals. 
In my practice, the use of photographs of “goal” pictures (and breasts that are too big or too small) is very helpful. I have found that the use of words such as  “natural” or "C or D cup" or "  too big” etc means different things to different people and therefore prove unhelpful.
 Also, as you know, cup size varies depending on him who makes the bra; therefore, discussing desired cup  size may also be inaccurate.
3.  Once you feel you have communicated your goals clearly,  allow your plastic surgeon to use his/her years of experience/judgment to choose the breast implant size/profile that will best meet your goals.  Again, in my practice, this decision is usually made during surgery ( after the use of temporary intraoperative sizers).
I hope this, and the attached link (dedicated to breast augmentation surgery concerns), helps.  Best wishes.