Will 650cc saline implants or 700cc saline look too big for my body frame? (Photo)

More important with the "look" is if your tissues can safely hold that size of an implant.  If the implant selected is too large or wide for your skin and tissues to hold, unpredictable things can happen that often result in a second, more expensive and involved surgery.See a plastic surgeon to assess and measure your tissues and discuss what is possible. 

Tall women with larger frames and broader chest, shoulders, and hips can often handle larger implants that would make smaller women's chests look overcrowded and heavier. I would recommend that you go with the size that boosts your self-esteem, and fits your anatomy. Implants of 600cc and higher will create more tissue thinning over time, have more potential for rippling, more potential for bottoming out, greater likelihood of breast lift revisions, etc.

Good morning!

The key to proper size selection is measuring your chest, communicating your desired goals with your PS based on goal/wish pics that you bring in and show them, and finally trying on the implant sizers with a surgical bra in the office. It's a process but it works- that way you make sure you get the size and results you want- make sure your PS hears you!!