Initially done for just an exploitable pose... hence the uh... pose.
I adore how this came out, especially when it just came from nowhere. It was actually far faster than I'd have expected were I planning to draw it.
About 2 hours, in SAI.
Murky Number 7 is the protagonist of a Fallout Equestria sidefic by the same name: [link]
(Or, on FiMFiction: [link]