The banana roll area shadows very frequently- it is due to an outpouching and shadow effect. Cellfina is not designed to treat this area. Should the banana roll bother you- you can consider Cool sculpting in that area. the dimples on the buttocks, however, will respond well to cellfina.
The dimpling from after liposuction means that there is uneven removal of fat. The dimpling is NOT from fibrous bands holding down the skin for the most part. This would require revision LIPO, sculptra, or fat grafting.
You appear to be a great candidate for Cellfina, however an evaluation by an expert is required to develop an customized treatment plan. Moreover, a combination approach is needed to get the most improvement. I recommend Cellfina in combination with Sculptra, and body treatments like Exilis U...