Where are they hiding?

- Agent Teela will find them eventually

So this was made randomly after I saw a few landscape paintings. Tried to do a study and see what happens.
I'm particularly satisfied with the spaceship, based on a 60's concept car. [link]

I made no plans for this, spent about 3 hours in the middle of the night.
Feedback and constructive critics are welcome as always.

Space background from Hubblesite.org

(update, Wallpaper sized and downloadable)