I recommend that you revise your tummy tuck incision sooner than later after the wound has stabilized, no necrotic tissue is present, and no sign of infection is noted; you need cultures to guide the antibiotics that you should be on for your revision.
Your wound looks seems to be granulating well. As long as you are a healthy non smoker, this should heal well.Meanwhile, i recommend that you continue with wet/dry dressings and adhere to your follow ups