Just a little something I threw together based on a fanfic I've been writing on and off for a while now. My original concept for this had Twilight and Fluttershy instead of Pinkie Pie (without the hat and 'stache) with Bowser and Discord to either side (I.E. the Bowser's Inside Story box art) with Luigi and Fluttershy reacting accordingly, but I decided that there would be too much going on for such a simplistic cover, so I went with this instead. There's a subtle gag to this, can you see it?