We are finally drawing to a close with the markers. :D
Well, since the picture is already very detailed I decided on a simple dark background so that the colours will "glow" a bit more.
As you can see I needed the wet-in-wet technique again for the parts with the wind. Here I had to be really careful because I didn't want to have a huge fading area and nearly black colours are very awkward to blend.
So in the order from light to dark I used: Blender, W3, W5, W7 and W10
I also used W10 to colour the rest of the background.