Could my tummy tuck be botched? (Photo)

You are still early in you're recovery phase and cannot determine you're final results. Edema and swelling are not uncommon conditions. You're swelling can last up to 6 months. I recommend you stay in close contact with you're plastic surgeon. If you feel that you need a second opinion, you shouls consult with a board certified plastic surgeon. 

Thank you for the question. No,  I do not think that your tummy tuck operation was botched; on the contrary,  based on careful evaluation of your before/after photographs, I think that your plastic surgeon has done a nice job for you.
When a tummy tuck operation is performed, many of the veins and lymphatic channels that normally drain  the abdominal wall are divided (severed).   After the procedure, the abdominal wall swells because these channels are not functioning.  Initially, after the operation, many patients are "pleased with the results"; as swelling increases, the flatness that they appreciated dissipates for a period of time.
  In other words,  longer-term swelling after tummy tuck surgery is not uncommon;  swelling may persist for many months and even up to one year after the procedure is performed. Often, patients will report that the swelling increases as their activity level increases and gets worse later on in the day. Sometimes, the use of compressive garments may be helpful to control the edema.  
 Generally, it takes many months for swelling to resolve after tummy tuck surgery and it may take up to one year (or greater) a complete skin redraping to occur.   Remember, that even in the longer term, most patients who undergo tummy tuck surgery will have some degree of "excess skin" when they are flexed at the waist and/or sitting.
I hope this helps.