Will 550 or 600cc round moderate plus profile give me this desired look? (Photo)

From the photographs you provided, you have a fair amount of a lax skin envelope that will overlie your implant. From the pictures you have shown of your goal look, a relatively large implant in high or ultra high profile with a maximum fill such as Natrelle Inspira or Sientra 206 in gel would get close to the appearance you want.  A grossly overfilled saline implant is also possible but it would feel very firm. I recommend you find a board certified plastic surgeon with experience in cosmetic breast surgery.  

Thank you very much for enquire.After having analyzed all the information and photos provided to us, I realize that you have sagging and small breasts. In this regard, you need volume (implants) and projection (the lift): Breast Augmentation w/Breast Lift.I recommend you to use microtexturized highly cohesive silicone implant ("gummy bear" implants), with high projection, and 550ml will be excelent on you, to fill the breasts properly.Finally, to perform the breast lift I recommend a Periareolar Round Block Breast Lift ("Benelli mastopexy"), which has an unnoticed scar around the areola, and if we see (in the surgery) that we can't obtain adecuate projection just with the Benelli Lift, we have to perform a "Lollipop breast lift".Respectfully,Dr. Emmanuel Mallol Cotes.-

Thank you for your question. "Tissue based planning" relies on your chest and breast measurements and is the safest way to ensure good long term results. Your surgeon should determine what size and projection are necessary to give you your desired result based on your body's measurements. The best way to assess and give true advice would be an in-person exam. Please see a board-certified plastic surgeon that specializes in aesthetic breast surgery. Hope this helps and good luck with your surgery.