Contrary to popular beliefs, Mini-Tummy Tuck procedures can often be more difficult and more artistic than a full Tummy Tuck. A mini tummy tuck is often performed by lesser surgeons such as ob-gynecologists or dermatologists with less experience who don't recognize that the procedure should be more than "tugging" on a little bit of extra skin. If abdominal corset sutures are to be placed, the dissection needs to be taken to the upper abdomen.
It appears like the patient above did not have the dissection taken up to the upper abdomen. This is evident by the pulled appearance of the belly button. This implies that the surgeon did not extend the dissection up to the upper abdomen. Without this dissection, the surgeon can not reduce the fullness in this area and makes placing sutures difficult to impossible.
An experienced plastic surgeon would generally be able to recognize this. At this point, the fullness may be reduced by some localized liposuction; but may require repeating the mini-tummy tuck procedure.