First, your breasts sit somewhat wide apart, and the bases cannot be moved. You cannot look like your wish photos. Second, one breast sags more than the other and this will be more noticeable if larger. Measurements are needed to know how large you can go and not be too large for your frame and...
Capsules can occur again, but going smaller is helpful. Close follow up after surgery and using breast bands and ultrasound treatments can be helpful. Sometimes mesh is needed as well if a reoccurrence occurs.
If the location of your implants are not really a problem and you look good in and out of your clothes, you might leave things alone. Sometimes implants do slip out from behind the muscle.