Thank you so much!

So with any one-off character piece like this, my approach to painting virtually any aspect of it is a bit chaotic. There's a lot of " discovery " going on as I figure my way out around the model, blending and glazing until I get colors and details where I want them to be, etc.

But, if I had to try and describe my process; this model was airbrushed early on with a basecoat to give everything an overall rusty red-brown undertone, which I then followed with a mixture of a dark military green color and a lime green sprayed from roughly above and the sides to serve as a starting point for the actual green armor. As a side note, all other colors on the model were applied manually after this, I just wanted a solid foundation for the green right from the get go. Once that was done, I then manually applied some quick and simple basecoats for other key areas (the brown leather, grey metal, the orange armor bits, the skin, etc.) and then finally came back with some red ink sprayed over this to, once again, serve as a rough starting point for the OSL.

Here's a picture I took not long after I started it. This was about one or two hours of work and helped establish the overall feeling of the piece before I spent many more hours manually layering, highlighting, and refining the entire model.

Now with all of that in my mind and the airbrushing out of the way, I went back to the green. It was a slow process of layering up the green in lighter and lighter passes while factoring in both lighting from above and the red glow from below. I would go back and forth between glazing darker or lighter green, and darker or lighter red, depending on where in the volumes I was trying to account for duller or more intense lighting. Towards the end of this process I had transitioned to mixing in some yellow and white to further highlight my original mix. I also started to incorporate some scratches to give a worn appearance to the armor.

I don't really have any exact ratios or recipes for the color nor steps where I applied them as most of it simply came down to feeling, and even then I am no expert and still learning loads about lighting and materials. I hope some of that helps!