Update: Changed the curls on her mane so they flow in a spiral better.
This was a beautiful episode, with a beautiful new character. Coloratura, AKA Countess Coloratura, AKA Rara, voiced by Lena Hall. Taken from the scene near the end of the episode where she finishes her piano piece and is about to address the crowd.
A SVG vector is available at Derpibooru.
You can also get a vector of her cutie mark at Derpibooru.
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