Learning is a work in progress for me so I figured I'd share what I've learned in the last few months:
1) Think like a photographer: lighting, composition, focus, etc can apply to make the image more interesting.
2) Larger resolution isn't necessarily better at anything other than taking longer and taking more credits. I've found that Flux can generate some stunning landscapes at 2MP but I don't see much improvement in most image types created beyond 1MP and I end up re-running a lot of portraits again for reasons like bad hands so why use more credits?
3) You can have fun with styles - cartoon, painting, photorealism, etc. I have more exploring to do here.
4) Using an LLM to refine a prompt is a good thing. I like to just tell an LLM all of my ideas for a prompt until I think I'll like the output.
5) Double check everything before you hit run. Can't tell you how many credits I've lost!
6) Have fun...