As seen in Season 1 Episode 21 Over a Barrel.
This was the first vector drawing I drew over a year ago and it must have taken me over 16 hours to make, because I basically had to teach myself how to use Adobe Illustrator by myself from scratch. I learned a great deal about layering from this particular image, mainly from Pinkie's hair and eyes. As well as grouping the individual pieces into folders and sub-folders so you know where each piece belongs, rather than having a list of hundreds of random shapes.
MLP:FIM (C) Hasbro