Here are some abstract art I created with Photoshop 5.5.  All art you see were created from scratch and without the use of other graphic programs.  (I don't know anything other than Photoshop!)

DK Bang
I created the fireball and its rings from scratch and just stuck it on to the burst background.

Solar Outburst
This came from a combination of clouds, pinches, and lens flare.  I added sparkles to the site version. 

Optical Washout
I used Difference Clouds about 15 times in order to get this nice cloud design.  I copied them and used hard light settings to get the glow.
The Blacksmith
I don't know if you see it, but I definitely did when I first made this.  I just used a lot of Distort Waves and multiple layer effects.  
Ice Breaker
Using the tutorial I read at Striding Studio, I used the Wave filter about in order to achieve this effect.
Fairy Fury
The original image was a star-burst image I created awhile back.  After applying a lot of Waves and a color layer, I got this sweet stuff.
Main Gallery