I'm 22, is my breast shape and size normal for my age?
You have a mild constricted lower pole on the left but as long as that is realized before your surgery and discussed with you it shouldn't create a problem with your result. It is just that the left infra-mammary fold will have to be lowered a little bit during the surgery.
Yes, your breasts look normal. If you are concerned about your breasts, please see your primary care physician for an assessment.