Well it's not like I haven't drawn humans before or that I'm done drawing ponies forever. I guess I'll draw humans sometimes, but this was basically me taking a break from nonstop ponying. And human Pinkie is just really fun to draw.
I'm not complaining or anything. Just wondering. In fact, I would love to see more non-pony drawings from you. While ponies are awesome, something new and fresh is always fun to watch. Do draw whatever you want!