When I first began experimenting with the computer I did a lot of color and design pieces like those shown below. This is a great way to familiarize yourself with the computer and the various programs. These were all created with the Adobe Photoshop 5.0 program.
Some parts of these images were picked up from previous paintings, so they could be considered collages.
When doing experiments like these (and you SHOULD do them !) don't be afraid to use wild colors, anything goes !