Image Generation Model Selection

Hi all, I am working on sort of visual novel game, and I want to explore actually generating images on the fly depending on what the character is doing. Generations don't need to be perfect but I am looking to: - Have a consistent character - Have a consistent image style (e.g. no sudden changes in brightness, or jumping from photography to hyperrealistic images) - Have control over the emotion the character is expressing (Angry, happy, sad; the finer control the better here) - Control camera angle, e.g.