These are characteristics of silicone implants that everyone denies exist and or don't warn you about. Everyone that pushes silicone either is not seeing their patients after surgery or they just ignore the problems.
Problems with breast shape after implants
It looks like you may have had a significant amount of breast sagging before your surgery, although it is impossible to know without seeing preoperative pictures. What you are seeing in some of the pictures is the breast tissue falling over the implant due to the loose skin. This can only be improved with a breast lift procedure. I don't see other indentations on your breast so I don't know if this is something different or just from the same issue.