Are my 34D breasts suitable for reduction? I would like them to be a small C or big B. (photos)

Thanks for your question. Based on your photos you would be an excellent candidate for a breast uplift procedure (mastopexy), and if you also wanted to reduce the overall volume of your breasts this could be done as part of a breast reduction. You could also consider an uplift procedure whilst keeping the majority of your breast volume to enable your breasts to sit higher and feel fuller in the upper pole - this is called auto-augmentation mastopexy. Consult with a specialist plastic surgeon with a practice focussed on aesthetic breast surgery to understand your options in more detail.

Hello and thank you for your question.
You may be a candidate for a breast reduction or breast lift. Schedule a consultation with a board certified plastic surgeon to discuss your options. Best wishes!

You need a formal evaluation by a licensed plastic surgeon and expert in breast reductions to determine what is best for you and your goals.
Breast reduction is one of my favorite surgeries as it allows me to dramatically improve a woman’s breast appearance as well as alleviate many physical symptoms of large breasts, such as back, neck and shoulder pain, bra strap grooving, and rashes under the breasts. When I perform breast reduction surgery, I generally use a superomedial pedicle to provide blood supply to the nipple while maintaining fullness in the upper and inner breast. Excess lower and outer breast tissue are removed. Breasts are often asymmetrical, so I remove more tissue from the larger breast. The final scar pattern is a circle around the areola, down the breast, and possibly under the breast, depending on the degree of skin excess.
For me, breast reduction is not a one-size-fits-all surgery. The size and shape of the breasts are customized to each patient depending on her goals and desires. Some women want a significant amount of tissue removed while others prefer to have a more limited reduction. Regardless of the amount of tissue removal, I perform the maximum safe amount of lifting and tightening for each patient.
I suggest consulting with a board-certified plastic surgeon and expert in Breast Reductions. - Dr. Cohen

BRs which are medically necessary (i.e. you suffer back, shoulder, head, and neck pain with DOCUMENTED medical attention over a period of a YEAR) are typical reasons for a BR.  If I understand your "private, not nhs" annotation, you plan to pay for the surgery yourself rather than seek a predetermination of benefits from your medical insurance provider.
Recommend that you schedule a consultation with a board certified PS who is an expert in BRs to evaluate your medical condition and history, discuss the pros and cons of this surgery as it applies to you, and help you in making a decision regarding reducing the breasts from a D to a small C or big B which appears to be a realistic goal.
Kenneth Hughes, MD, ABPS Board Certified Plastic Surgeon
Los Angeles, CA

The technique I recommend is The Bellesoma Method.  This will reshape your breast tissue creating upper pole fullness without implants, elevate them higher on the chest wall and more medial to increase your cleavage.  The weight of the breast is transferred to the underlying pectoralis major muscle resulting in pain relief and long term stability.  Vertical scars are avoided, nipple sensation and the ability to breast feed are maintained.    Best Wishes,Gary Horndeski, M.D.