The lora is deliberately not trained on any space operas from the 70s and 80s era.

Avoid using "space station" if you want the lora to take. Hunyuan seems to like modern ISS footage if you do.

Likewise, the term "futuristic soldier" might give you something that looks like "Master Chief" from Halo.

Prompt example:

"A group of astronauts, clad in white space suits with gold trim, stand on a rocky, barren landscape. They are silhouetted against a dark, starry sky. In the background, a large, bright moon is visible. The astronauts appear to be gathered around a structure with illuminated windows, which emits a warm, yellowish light. The image is of high quality, capturing the details of the astronauts' suits and the rugged terrain. The overall atmosphere is one of isolation and exploration."