Note: this tutorial works best with bright HQ pics.



IN JUST 3 EASY STEPS!

-Using PS7
-Involves Selective Color and Levels



I started out with this base:

1. Take your base, resize it, and place it on a blank 100x100 canvas.

2. Create a Selective Color Layer
r: -100 0 100 0
y: 100 0 50 0
n: 26 6 11 14

3. Create a color fill layer with #6F080B. Set it to exclusion at 30% opacity

4. Create a Levels layer
rgb: 20, 1.10, 255
red: 30, 1.15, 255

5. Add textures, brushes, or text and you're done.

Note: if your end result turns out with the image being too yellow, do the following:
Edit your Selective Color Layer:

r: -100 0 100 0
y: 0 0 0 0
n: 26 6 11 14

end result:

other examples with this coloring: