Abstract Signature / Banner 1. Start by going to File -> New -> 350x90 [In Pixels]
2. Press '"D'' to reset your color manager, and go to Edit -> Fill. Choose Foreground Color, and you should have this.
3. Now make a new layer, then select your brushes, and start brushing in white with some abstract brushes.
4. Now make a new layer, and start brushing in black.
5. Repeat steps 3 and 4 until you get something you like. This is how mine turned out.
6. It's time to add some color, but first, find a render that you like. I chose this render...
7. Open your render, then select all (Ctrl+A) -> copy (Ctrl+C) -> and go back to your signature background, and paste it (Ctrl+P).
8. Position it where you feel it belongs. This is how it looks so far...
9. After, duplicate your render, and go to Filter -> Blur -> Motion Blur.
Angle: 0 - Distance: 50. Now, put your blending mode as overlay (the render layer that you blured), and duplicate it as many time as you need, then spread it around the signature until it covers it all with some color.
10. Now, select the render layer that you haven't blured, and duplicate it, then take the 1st non-duplicate and go to Fliter -> Blur -> Motion Blur. Angle: 0 - Distance: 75. Duplicate the blured layer as many times as you need, and spread it around the signature, until it's covered again. Put the blending mode to overlay again on all the layers.
This is how it should look like...
11. Repeate step 10, but with the Angle: 0 - Distance: 100, and the blending mode as hard light on all the layers.
12. Next, select the layer than isn't blured, or hasn't been touched. Change it's blending mode to Linear Dodge, and duplicate the layer, change it's blending mode to Overlay, then duplicate it one more time. Make sure the blending mode of the last one you duplicated is set as Overlay. Here's my outcome so far.
13. Now add some text. Choose text that you like, and add it right on their. I'm not very good with text, so I won't be adding any.
14. For the final step, attach all the layers by pressing Shift+Ctrl+E. Then select all (Ctrl+A), and go to Edit -> Stroke. I recommend a 1 pixel border, using the color red or orange.
Here is my final outcome...

I hope you've learned a lot from this tutorial. I'd like to see your outcome if you tried it.