Quick 'n Easy Ork Skin

I've been toying with the idea of turning the orks I got with the Black Reach set into a real army, but before I spend any money on the idea, I want to make sure I'll be able to paint my horde decently. My first attempts were pretty amateurish. After some experimenting with colors, I finally settled on this process for the skin:

1. Base black
2. Solid coat of Iyanden Darksun
3. Quick highlight of Sunburst Yellow
4. Two washes of Thraka Green

After these steps, I ended up with this result, which I'm happy with:

It is extremely quick and doesn't require much attention to detail. Also, the green wash over yellow paint makes the recesses stand out quite well.

Now, the only question is... when will I have the time and money to start building my ork horde?