One scene has the moon in the skybox,, while trying to be on the moon. (work that one out...) 

It's not a bad set of obstacles and not terrible on the eyes once you get over the basic shapes, and soak in the textures instead. 

The ISS is an asset from the unity store , it's really not bad at all. I wish it were as high texture quality as some of the ring textures in the game,, but once you get flying around it, there's nothing to worry about,, it looks great! Also,, the ISS is one of the places I imagine that a drone race might be able to really happen, so I'm very excited to have such a great representation of it in the game. !!