Seeking Expert Advice to improve my Image quality

mountains: Look at the man's face at 100% He's poorly drawn, with unrealistic teeth in particular. There is a halo around his ears and jacket that need to be fixed; too contrasty overall

reslahmed: lights on the robot all all very poorly rendered

39A_US_Army: American flag has too many stripes and poorly rendered stars; blurry areas in his uniform and more haloing

48A_worker: lost on detail in his glove due to overexposure

17Azalea: lots of noise and white speckles

5A_close-up: Out of focus and poorly rendered detailing in the goblet

Bear in mind I've only pointed out a few of many issues. And it only takes one problem to result in a refusal. Creating AI images is easy; fixing all their shortcomings is very hard.