Here is the seventh sketch. The Magical Alicorn Princess Twilight Sparkle

Here is the deviation: https://musescript.deviantart.com/art/Muse-s-Sketches-7-Twilight-Sparkle-720013604
And original sketch: https://musescript.deviantart.com/art/Muse-Sketches-710217521

Song playing is an instrumental to "Snow Angel" sung by Tori Amos. That I do not own.