Sunset Shimmer vector belongs to Mewtwo-EX, and the background scenery was vector’d by BonesWolbach.
Humane Five + 1 (Sci-Twi) Vectors©ImperfectXIII
Sunset Shimmer Vector©Mewtwo-EX
Background Scenery by BonesWolbach
“Equestria Girls” Characters©Hasbro Studios/DHX Media