Character and background renders from Midjourney --sref 15.

Images sized to 1024 x 1024
Dominate apocalyptic Reds.
Characters include astronaut, turtle, geisha, athlete, satyr, death, and pirate.
Caverns, buildings.
Lots of red futuristic type images were used to train, all using --sref 15 style code in midjourney.
I also used RPG v5 model and this lora for the below images.
RPG - v5 | Stable Diffusion Checkpoint | Civitai

Sample Images below