I've been excited about getting Minuteman x2 (Minutemen?) since Wrath came out, and when they hit the streets a few weeks ago I knew I wanted to try and push myself to do something that I'd consider "out there" for my normal paint jobs. Since this little bugger hops around with jump jets, I decided to try and make it look like those were in use.
The streams of fire are muzzles flashes that I picked up over at Armorcast, which I pinned into the jets. Because they are so long, I put the minuteman one a large boulder made out of cork covered in green stuff. A little bit of practice with my airbrush and a few Brushtralls tutorials later, viola! OSL.
By request, step by step on the OSL.
I painted the model the way I wanted it, and finalized everything except for my final spray of dullcote/sealant.
Then, I loaded up the airbrush with dark red, and sprayed the back of the mini from a few angles. I did this from far away from the model, and sprayed in a wide arc to get the warm glow.
I switched to a dark orange and repeated the process, except holding the airbrush closer and spraying in a tighter arc. This made the light more intense for that color.
Repeat again with light orange, yellow, and white. Getting closer, shrinking the arc, and getting it more intense with each spray. At the end, I coated all of it with a spray of a really watered down orange wash (1 part paint to 10 parts water) to tie it together a little.
This, of course, totally screwed up the flames themselves, which I then repainted (based menoth highlight, then yellow (leaving some white), orange (leaving some yellow) red (leaving some orange).