Sunshine Smiles and Moonlight Raven

Sunshine Smiles and Moonlight Raven are the placeholder names of two unicorn pony sisters  who appear in the season five episodes Canterlot Boutique and The Cutie Re-Mark - Part 1. They are credited respectively as "Bright Pony" and "Goth Pony" in Canterlot Boutique.

Design
Sunshine Smiles has a pink coat, two-tone gold mane and tail, lime green eyes, and a cutie mark of an exploding star. She has a similar color scheme to S05E01 Unnamed Unicorn Mare #6 and similar coat and mane colors to Meadow Flower.

Moonlight Raven has a bluish gray coat, dark blue mane and tail, amber eyes, and a cutie mark of a purple heart and four outward-facing crescent moons.

Depiction in the series
Sunshine Smiles and Moonlight Raven first appear in Canterlot Boutique as patrons of Canterlot Carousel. The flat-voiced Moonlight Raven expresses interest in "Over a Moon", a dress in Rarity's "Royal Regalia" collection inspired by Princess Luna, while the excitable Sunshine Smiles is drawn toward "Tripping the Light", a dress inspired by Princess Celestia. Both unicorns feel like princesses while trying the dresses on.

Sunshine Smiles and Moonlight Raven appear again in The Cutie Re-Mark - Part 1 listening to Twilight Sparkle's Cutie Mark Magic lecture at the School for Gifted Unicorns.

My Little Pony (mobile game)
In Gameloft's mobile game, Sunshine Smiles and Moonlight Raven are available as playable characters; they are referred to simply as "Bright Unicorn" and "Goth Unicorn" respectively.

Promotional material
Sunshine Smiles and Moonlight Raven are featured in the "One Million Friends" poster on the My Little Pony Facebook page.

Quotes
Canterlot Boutique
 * "Moonlight Raven": [flatly] Whoa. This dress completely speaks to my soul. Can I try it on?


 * "Sunshine Smiles": This is the most amazing of amazing dresses! Just looking at it brightens my day!


 * "Moonlight Raven": [flatly] Whoa. This dress makes me feel like a princess.
 * "Sunshine Smiles": And this dress makes me feel like a princess!


 * "Moonlight Raven": [flatly] But this stuff's still on sale, right?