What can be done to correct previous mini tummy tuck and umbilical float results? (photos)

It looks to me like you would benefit from liposuction. An exam will be necessary, but your skin appears to have good elasticity, your muscles (presumably) have already been repaired. This would leave the subcuticular fat which when thinned, can make a dramatic difference. Thank you.

Dear pocoyo_pico,
based on your photos, you look like a good candidate for a TT. Full tummy tuck should tighten your abdominal muscles and remove the excess skin. Flanks liposuction would give you a better shape. I would suggest you to consult a board-certified plastic surgeon because only after a thorough examination you will get more information and recommendations.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

You need to post photos with your standing upright to see where the excess skin sits. If you have lower excess skin, it can be removed again safely like another mini. The reverse tuck sometimes just pulls the breasts down lower and may not be the best choice.