I underwent a tummy tuck 7.5 months ago, my results are underwhelming. Do I need a revision, just more lipo, or what? (Photos)

You need an examination to be sure, but based on your photos, you appear to have visceral fat which cannot be addressed except with weight loss. Please discuss this with your surgeon.

Hi and welcome to our forum!
From your photos, I note 2 preoperative views, demonstrating a full abdomen and full flanks, and a small hanging abdominal panniculus. The postoperative views demonstrate elimination of the panniculus and a flatter abdomen. There still appear to be relative fullness of the flanks. Unfortunately, there is a hypertrophic scar about the umbilicus.
Abdominoplasty does not address the flanks unless the procedure is extended laterally and posteriorly as an "extended abdominoplasty". In some individuals, this can be extended circumferentially around to the back, called a "beltectomy". While your abdomen is tighter, the flanks remain relatively full.
Liposuction of the abdomen is usually not recommended during abdominoplasty as there are often blood supply concerns to the abdominal flap,
A hypertrophic scar represents an abnormal response to tissue injury, resulting in deposition of excess collagen. Its prevalence is increased after infection or in wounds under mechanical stress. The scar doesn't grow beyond the boundaries of the original skin injury.
There are non-invasive and invasive methods to treat these entities. Hypertrophic scars often spontaneously regress with time, the final scar noted when the redness of inflammation has subsided (usually at 12-18 months).
The application of pressure and immobilization of a scar with silicone gel sheeting appears to hasten resolution of the process. Various creams are available, but their efficacy is questionable.
Laser treatments are available with varying degrees of success.
Injection of corticosteroids directly into the scar may flatten the scar and alleviate symptoms, but may also broaden the scar and cause pigmentary change in the skin locally. For this reason, we usually delay its use for as long as possible.
Surgical scar revision is an option to consider if regression is not noted at 12 months after the procedure.
Liposuction of the abdomen and flanks may be considered.
Best wishes...

Your umbilicus should have a steroid injected to lessen the scarring. You may benefit from liposuction of your sides and lower back.