Learning how to use 3Dcoat :D
More specifically, using the voxel modelling tools to quickly make some pretty nice looking 3D sketches and incorporate them into some photobashed scenes.
I also tried (in the first painting) to use some more stylistic shape design in the smoke and explosions as I haven't seen much of that style used in gritty military art. Verdict? It's cool and I'm gonna do it again :3