Over 20 reviews in under 2 weeks! Thank you all so much.
I have taken on board all your suggestions (most of which are fantastic) and will incorporate them into a re-write.
The question is... am I allowed to re-write my entry now it is in the judging stage?
My suggestion is to build the synopsis so that it has irony. In this case the main character is unhappy with his current situation, so he volunteers for an expedition to find a better planet. Only that when he arrives he finds it's not much better than the one he's just left. In fact, it's worse. It's Planet Earth, the suckpot of the universe.He's heard stories in the past how awful it was and now he's there to colonize it. Wars, religious and racial intolerance, more wars, ugly people. Irony.