Great picture, everypony is so in-character and the situation could be from the show itself. I just don't understand why Twilight is looking in this way at the candles. She not seem worried, more angry.
I've seen something like this on World's Dumbest Record Breakers. You can't have that many candles together because they can create a firestorm effect and make a fireball. I love everyone's reactions to the very real danger.
pinkiepie:this is a lovely cake rainbow dash: pinkie! your hair is on fire! flutter shy:.... luna: applejack:...when did i got that fire instingreatsa raity: dont let it get to my hair! twilghit: pinkie! this party is ruined! princesses c: uh how did this happend... now read this backwards... princesses c:uh how did this happend?....and so on
Twilight: pinkie, what in equestria were you thinking!? Pinkie: twilight, I never cut corners when it comes to candles on a birthday cake. Luna is over 1000 years old, so she gets over 1000 candles. Twilight: somehow I fell I should be grateful that the cake is only that big. Pinkie: well I did have an idea of making a cake as big as the castle. Twilight: ._. :face hoof: