This is probably the most involved vector I’ve pounded out so far. Took me about an hour per pony to do the layering, plus at least two more to do the coloring and tweaking. A tedious and demanding process, to say the least.
 
Anyhow, I admired the episode in more ways than one. They’re so different in appearance and personality that it’s hard to believe they’re related by blood. I find Marble Pie’s color palette to be especially nice.
 
One thing I must make note of: being as Limestone’s cutie mark wasn’t clear, I borrowed said cutie mark vector from xebck on DeviantArt → http://xebck.deviantart.com/
 
Since I had such a blast with this one, I plan to whip up more multi-pony vectors in the near future. Why stop now, right?
 
That being said, have a superb time and enjoy, everypony!
 
Edit: Touched up Pinkie’s tail.
 
Edit 2: Corrected a few other minor issues.
 
Edit 3: Touched up Pinkie’s tail again.
 
SVG available here: https://www.dropbox.com/s/ni5ofbg8xwmxply/Pie%20Sisters.svg?dl=0