Fluttershy: She speaks in a quiet, soft voice. She is sweet and calm, but often very shy around others. 

Virgo Suede Shoes



Pinkie Pie:She is hyperactive, random and quite silly but is also friendly and uncommonly kind. She enjoys singing, is musically talented, and often suddenly breaks into song.
 
Geometric Pattern Dress 
Contrast Rubber Sandals
Candy Color Gradient Socks 
Three-dimensional Bag In Pink


 
Rainbowdash: She is very brave, bold and tomboyish, she is fast.

Cloud Printed Jacket 
Side Zip HighTrainers
Blue Transparent Vest
Denim Shorts 
Round Sunglasses in Crystal Blue
Rarity: She is a fashion designer and seamstress at her own dressmaking shop, the Carousel Boutique. She is very stylish and beautiful, takes great interest in fashion and clothing design.

White Leather Sandals 
Carved Sunglasses
White Chiffon Shirt
Leggings Plaid Print 
Folded Bag In White

Celestia: She often does not directly state her goals, but rather gives the advice to help her students find the answers they need. She often encourages her subjects to relax with jokes and gentle questions. She also shows great patience.

Gold Sandals
White Necklace With Jewels 
Pearl Dress In White
Twilight Sparkle: She is the most calm, rational  and even-tempered pony. She had many instances where her patience (and sanity) have been challenged and even overwhelmed.

Vintage Print Dress 
Purple Backpack With Rivets
Lace Leggings 
Pointed Heeled Shoes

 
Applejack: is a reliable, mature, and hard-working pony, although headstrong about doing things on her own.

High Neck Denim Jacket
T-Shirt In Polka Dots
Skinny Jeans in Grey Denim 
Western Ankle Boots
Straw Brim Boater

 
Luna: is overly confident of herself and dramatically atached to the royalty manners.

Blue Metalic Stud Necklace
Blue Transparent Bag
Lace Mini Dress
Leather Sandals

Note: thanks very much to Kelly who made the amazing fanarts of the MLP girls, I found the picture on tumblr without any credit, so please if you see this post please comment how to add the info well :).