Flux version:

weight between [0.8,1.2], best at 1

trigger words : retro_scifi_90s, retro_artstyle, retro, cyberpunk,

Chroma version:

weight between [0.8,1.2], best at 1

trigger words : retro_scifi_90s, retro_artstyle, retro, cyberpunk,

Illustrious version:

weight need to be adjust, between [0.7,1] looks good. weight at 0.8 can be use as a starting point.

prompt : retro_artstyle, retro, cyberpunk