Linolafett writes:
A quick run down on how i light up and composite (super reduced node setup though) my space renderings. This will be super useful for you, who are currently taking part in the CG Boost challenge :)
Make sure your albedo values of your surfaces are roughly where they should be (white paper has a value of ~0.65, there should not be a lot in you scene which is brighter), otherwise your result will be a completely white image.