From the photos, you appear quite slim with very little excess fat, so the main issues to evaluate are skin quality and whether you have a true rectus diastasis. After three pregnancies and C-sections, diastasis or abdominal wall laxity is common and can make the abdomen protrude even when there is not much fat. Skin laxity around and above the belly button can also remain after pregnancy and usually does not respond dramatically to exercise or liposuction. If you have a significant diastasis, the most complete treatment is usually a full tummy tuck with muscle repair, because that allows the surgeon to tighten the abdominal wall and redrape the skin. A mini tummy tuck generally treats only the lower abdomen and would not reliably correct upper abdominal laxity or separation above the belly button. Liposuction alone would not fix diastasis and could make loose skin look more noticeable in a thin patient. If the exam shows only mild skin laxity and little or no diastasis, nonsurgical skin-tightening options such as RF microneedling or energy-based tightening may give some modest improvement, but they are not a substitute for muscle repair or removal of loose skin. Since you are already planning a breast revision, ask your board-certified plastic surgeon whether an abdominoplasty could safely be combined or whether staging the procedures would be better based on operative time, recovery, and your lifting restrictions at home.