I said I'd do one of these. This is rough, but it's a good example of how I approach paintings I want to get done fast. The steps can get more complex if there are a lot of markings and so on. So I guess this is sort of how I speedpaint? hym.
Note: I paint using VERY few layers, normally. On a more complex piece, or for items I'm worried I'll mess up (whiskers, sometimes eyes) I will paint on their own layer before flattening later. I tend to randomly create new layers to paint on, and flatten near the end for any fast project.
If it's more complex, I will use more layers, but I still approach most pairings like they're on a unified canvas rather than like puzzle pieces.
Ask any questions below. I will expand upon the brush section later.