5ft 3, 53kg, what type of implants are these & are they realistic for my frame? (Photos)

I would suggest meeting with a board certified plastic surgeon, being measured and examined, and trying on the range of sizes that best fits your frame and tissue. Then you can see what you actually like.

Dear misssvc,
breast implant type and sizing selection is a complicated process and requires a detailed consultation that includes a discussion of your goals, a detailed examination, and a lengthy discussion. But the decision will always start and end with the patient. When it comes to sizing, we have all of our patients find 3 photos of their desired breast size. We ask for naked breast photos because clothing can obscure the true size (push up bras). Next, we consult with patients and go over the photos and take detailed breast measurements during a physical exam. Next, we using a sizing algorithm to determine a range of implants that will work based on the exam and the measurements.Lastly, during the operation, we use silicone sizers in the operating room to see how the size actually looks in the breast. We sit the patient up in the operating room, while asleep of course, and compare the sizer result with their desired look photos. If it is too small, we start the process over with a slightly larger implant. We don't stop until we get the perfect match.Of all of my breast augmentation patients, every one of them has been happy with their size due to this detailed and meticulous process. You don't want to invest time and money into a result that is either too big or too small.You should discuss your concerns with a board-certified plastic surgeon and make sure that your surgeon understands your goals.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

From your photos the size you are considering should look nice on your frame. Implant selection is best done in person with your board certified plastic surgeon. During a consultation your surgeon will take measurements of your breasts as well as talk about your goals for surgery. This information will be combined to give recommendations for implants that are the best match for you. I've included a video that I hope you find helpful.