These are stock images that I tossed through "artistic" filters.
They are LARGE images and you will have to resize them. They will show up resized in your browser so make sure that you look at them full size before you make up your mind.
These are abstract:
These are from a clipart cartoon:
These are from galaxy images.
as8.png as9.png as10.png
Astronaut hanging in space image:
as14.png as15.png as16.png