Scoring system? OP's try? Hm. Not the best. Also, is this too simple? Really, think this post over. I think you should get a mod or admin to delete this post, and then make it somewhere else, maybe General Discussion, as an idea, if anyone can, perhaps? It would make it a lot nicer. And now, with Sketchfab, we can post our spacecraft's 3-D models so we do not have to show 100 different screenshots from 100 different angles. Okay, and also, the "stable orbit" rule is kind of...well..to tell you the truth...stupid. Sorry, but it's true. Please look at the challenge guidelines.