Art director—like controls

I've designed book covers professionally for 30 years and often use stock imagery in my compositions.

It would be great to have various controls to be able to tweak one particular generated image which may be very close to what I'm lookiing for in order  to give it "More cowbell!" (ref: Christopher Walken's and BOC's SNL skit), so to speak. I'd like to be able to control: overall aspect ratio; adjust colors of scene elements; replace and/or remove elements; change camera perspective and depth of field; change time of day and weather conditions; various cinematic camera controls such as truck, pan, dolly, etc.: All affecting one particular generated image so as to perfect it.

I don't see this as delegating too much human creativity to AI: just the opposite. Firefly can be my "crew" and do my bidding, where it's MY cretivity "at the helm" which conceives of my artistic solutions to my customers' requests and requirements.