I'll try another type of speedpaint.
When the song interact with the record of the drawing ^^
Kinda fun to test it ^^
I don't know if i'm the first to make it

For being more clear about the story of the speedpaint, you must watch the episode of MLP with Daybreaker and Nightmare Moon.
In the episode, the 2 two understood who much she's important for the 2 of her. Celestia need Luna and Luna need Celestia for the peace. So, i'll representating it with the dark side's sister totally switching