Here are all the MLP colors I could think of to put for the Piscosis-Reaper mask design, from Adagio to Zecora (Yes, this was in alphabetical order, and yes, I know there are other characters missing, I'm sorry), here you go.

Here's all the ponies listed from A to Z:
<i>Adagio Dazzle, Aloe, Apple Bloom, Aria Blaze, Babs Seed, Big Mac, Braeburn, Cheerilee, Cherry Jubilee, Cl9udchaser, Coco Pommel, Coloratura (RaRa), Diamond Tiara, Discord, "Doctor", Double Diamond, Facny Pants, Flam, Flash Sentry, Fleetfoot, Fleur De Lis, Flim, Flitter, Fluttershy, Gilda, GnPT ("Great and Powerful" Trixie), Granny Smith, Ms. Harshwhinny, Hoity Toity, "King" Sombra, Lightning Dust, Limestone Pie, Lotus Blossom, Lyra Heartstrings, Marble Pie, Maud Pie, Mayor Mare, Moondancer, Mr. Carrot Cake, Mrs. Cup Cake, Muffins (fka Derpy), Nightglider, Nightmare Moon, Nurse Redhear, Octavia Melody, Party Favor, Ms. Peachbottom, Peppermint Twist, Photo Finish, Pinkie Pie, Prim Hemline, Princess Cadence, Princess Celestia, Princess Luna, Queen Chrysalis, Rainbow Dash, Rarity, Sapphire Shores, Sassy Saddles, Scootaloo, Shining Armor, Silver Spoon, Soarin, Sonata Dusk, Spitfire, Starlight Glimmer, Sugar Belle, Sunset Shimmer, Suri Polomare, Sweetie Belle, Sweetie Drops (aka Bon Bon), Tirek, Trenderhoof, Troubleshoes, Twilight Sparkle, Vinyl Scratch, and Zecora.</i>

If the background comes out black, I apologize, FA doesn't know how to convert gifs properly, as I usually see it. -_-

Characters and show © Hasbro, Inc.
Psicosis-Reaper design credited to "Sergio Jimenez"(?)
Art by MysteryFanBoy