What do I need to fulfill my goal of having a small waist, flat stomach, and defined abdominal muscles? (photos)

Thanks for your question and the photos you provided. Without knowing the rest of your vitals, past medical history, and examining you in person it is difficult to answer with complete certainty. However, knowing that you have had multiple rounds of liposuction to the same area, I would turn your focus on to non-surgical skin tightening and weight loss. Consider Morpheus 8 to assist with your loose skin and weight loss to help bring down your visceral volume. Good luck!

HELLO, BASED ON YOUR PICTURES WE CAN DEFINITELY SAY THAT YOU CAN DEFINITELY SOMEWHERE TO ANOTHER PLASTIC SURGERY PROCEDURE TO IMPROVE THE APPEARANCE OF YOUR ABDOMEN, HOWEVER WE WOULD HAVE TO EVALUATE MORE IN DEPTH AND WITH PHOTOS FROM BETTER ANGLES TO RECOMMEND YOU WHICH WOULD BE THE BEST PROCEDURE FOR YOU IT

Hello Dear,
Thank you for the detailed information that you provided.
A more attentive and detailed approach might be the remedy you are looking for depending on your skin quality and the nature of your body fat. Every person has a different metabolism and skin quality, surely we can not overlook these facts.
Sometimes, if the patient's body is so challenging to work on, of course this can limit the perfection of the results. But the main question should always be "which surgeon has enough skills & experience to get the most correction with a body that is hard to work on?"
Hope you find this answer helpful.
Be safe, be happy