100 pound weight loss - Tummy tuck or lower body lift? Lipo or no lipo? (Photos)

Thank you for posting your question here ! also congratulations on your massive weight loss , what an achievement!
My answer should not be considered as medical advice since I am not privy to your medical information nor have I examined you.
I would say that for your middle section and for the optimal results I would consider at least lipo 360 with an extended abdominoplasty/ tummy tuck , it is hard to tell how much laxity you have in your buttocks vs cellulite , but if you have a lot of laxity there then you might want to consider adding a lower body lift , but if it is just cellulite then an extended abdominoplasty can take case of the love handles that you see in the back and give you more of an hourglass appearance, I would definitely add liposuction as adding it will help get you a better shape and makes your end result less boxy and more hour glass and when done right and with good judgement it can be coupled with the abdominoplasty surgery safely.I hope this helps, best of luck ! and congratulations again on your life changing weight loss!