Try an abstract out of focus shot if your camera has manual focus control.
For a start try lights at night – these could be traffic, reflections, building lights etc.
Defocus your subject and compose your image on your screen.
You will find that colours blend into each other giving a very pleasing abstract image, good enough to get enlarged and hang on your wall!
If anybody has any questions about any area of photography, Pete will be pleased to answer them for you, just email firstname.lastname@example.org.