My Little Pony Friendship is Magic (2012) #84 (COVER A MCGINTY)

It's exam time at the School of Friendship, and Ocellus has come up with an idea for a stellar project that's sure to impress all her teachers-a history of Equestria shown through her own unique Changeling abilities! But as deadlines loom and Ocellus finds herself taking on a bit more than she can handle, it's up to Twilight Sparkle to help her young student realize that sometimes, perfection is overrated.