Derped version of Derpy.
I don't really want to call them "drawball" any more, but what's the alternative? "Pencil-only color mosaic" ?
Anyway that's what it is: drawn using only one simple brush; no eraser, undo, color sampling, color fill etc. Put every single pixel there myself.
edit: I'm talking about Derpy herself there. The background actually is taken straight from Drawball.
Also it turns out resolutions below about horizontal 1800 are too low for this style and look simply ugly. Original for this one is 1800x1967.