I had a lot of time to think on my mercs models durring the craze of assembling all those other models. The one thing I can think of that I really did different is the dry brushing.
This was done in a few ways.
1. I used more than 1 color.
2. I used a new style of brush.
Now the one I can explain is the brush so I figured I would toss this out there.
Behold the dry brush.
That is right. It is a make up brush for doing eye shadow.
I rembered reading somewhere years ago that they were great for dry brushing. I think it was a combination of price, strength of the bristles, and shape retention. That made them so good. I would also add the range of sizes are good to.
I picked this one up for like 1.50 on sale earlier this year, normal price is like 3 dollars. So give it a try, its cheap and it may just work out better for you and your wallet.