This is a very small oil painting of a quarter horse.
This is the actual size, I went through a stage of doing minatures, and now I'm doing the opposite and trying to make myself paint bigger canvases.

You learn something from each approach, but I do have a fond spot for these little paintings, done with 000 sable brushes. They don't use much paint or canvas (board in this case) and can be finished in a couple of hours.
I don't think my eyes would be good enough to paint this small now, perhaps that's why I want to make things larger.