A mini-TT will only treat the excess skin and fat and the abdominal wall laxity that is present below the navel.A patient who is a good candidate is an uncommon one. An example of on would be a young slender women with strong abdominal muscles who has loose skin overhanging a c-section incision.
Your photos demonstrate excess tissue above and below the navel. Just treating the lower half of the abdomen would create an imbalanced look that would likely seem less attractive than the pre-op status.
You also should consider treatment around the flanks. Liposuction might work part or the way around the back.
Thanks for the question and the photos. Best wishes.