Hi Hannes. Fun Image!
I would eclipse the light of the sun a bit more. Right now you have the sun the ship and the figure as points of interest. 3 is a good number, but their not playing very well together right now.
Also if you move the figure just a little to the left that might help with balancing the elements in the comp, as well as create more visual tension, since anyone diving up behind him would be just as distracted as he. And, well, SMACK!