radix pointed out this link on blender.org
No prizes, but, hey! It is a worldwide contest, you can promote Blender and there is plenty of you who posted a Mars image already on these forums 
Stefano
wow that’s a cool contest…maybe I’ll enter…we’Ll see…
I can animate a bunch of martians holding protest banners saying “Earthling go home”
no animation, just a still in a tiny white circle 
This is their template…your image goes in the white space.
It is an intresting contest it is just that the format dosn’t exactly give you much control over composition, etc.
if you need a very simple but artistic martian then just ask me! 8)
I was just joking, I would do something serious.
You know… it does seem odd to me that the ESA is contemplating sending a manned expedition to Mars when they haven’t even sent one into orbit, but hey, good luck! chuckles
Imp