I did a few sketches of satellites in my sketchbook and then went to my computer where I started trying to come up with an appropriate outer space background. I tried lots of variations and had a difficult time coming up with something that I was happy with. I started off with a very dark color scheme which I gradually developed into something much lighter.
I started adding some additional colors that I had planned to develop into gas clouds or nebulas, but they just never seemed to look right. I was getting frustrated fast.
Here is the image after I started to do some freehand sketching of my satellites over the finished background. Before starting to draw I had turned on the 'Define Pattern' mode so that anytime a line went off the edge, it would reappear on the opposite side of the drawing and would thus line up properly when tiled. This of course, slowed down my pen a lot, which was frustrating. As you may notice, I originally had an extra satellite in the image, but I decided to take it out after doing a test of how the pattern looked when tiled. The extra satellite, since it was a vertical object, tended to create a vertical stripe when the image was repeated so I decided to remove it.
Here is the final painted image after I removed the extra satellite. You can see what the image looks like tiled as a pattern at the top of this post.
Thanks for reading this, I hope you found it interesting.