Deciding on a theme

My project will be to create a team deathmatch map in Unity, the theme of which will be set in space. A few ideas have been floating around.

Creating a floating village in space would be pretty cool, and offer interesting mechanics of jumping between the islands. Lumps of rock floating in space, perhaps from a destroyed planet which you can see in the distance. Each rock could have a number of jump pads enabling the player to jump between the rocks.

Heres an example of the sort of thing i was imagining.

Another idea, which i think is much stronger to build a playable area around, is having the idea of a cruise ship in space.

It could be split up into 3 distict levels, with stairways leading up, and an elevator placed in the middle which links to all levels. At the back players should be able to see the thrusters/jets of flame coming out the back of the ship, giving the illusion of the ship moving

This would be a really interesting setting to look into, the efects used to create the illusion of space to the player. Some research into lighting on space themed levels could throw up some really interesting lighting effects which can help immensly to keep the player immersed.

I shall post some extra concept images/ideas to try and flesh out this loose idea at the moment, later this week.