Complex sentence: Sunset Shimmer is a light amber unicorn pony with teal eyes and a crimson-and-yellow mane and tail, main character exclusive to the "Equestria Girls" film series.
Split into simpler sentences: Sunset Shimmer is a unicorn pony with a light amber coat, light teal eyes and a yellow-and-crimson mane and tail. She's a main character exclusive to the "Equestria Girls" film series.