Brandon T. Snider said this quote

Fluttershy is a natural beauty with gentle, serene ways. Despite her shy and unassuming nature, Fluttershy has a unique gift with animals. Her sweetness and sincerity can charm every animal, from tiny woodland creatures to the most powerful of mythical beasts, making her a valuable asset to her friends in all their adventures. Although she's afraid of heights (very embarrassing for a Pegasus) and shies away at the slightest sound, Fluttershy has no problem confronting grumpy manticores or scolding greedy dragons. While she lacks confidence, she has an inner strength that comes out when others are in trouble. Fluttershy has a lot of fears to overcome, but one day her strength of character and enormous heart will make her a force to be reckoned with.

~ Brandon T. Snider

When her pony pals are down in the dumps, Fluttershy swoops in to cheer them up in her own sweet and quiet way. She delights in the beauty of friendship and the nice feelings that comes from being nice. Fluttershy is definitely a little bit meek, but she can be fierce when she needs to be. She's faced her fears and grown a whole bunch, and she continues to build her self-confidence! Oh, and she loves her animals. A LOT! Even when they're being naughty little critters. She's probably the most in tune with creatures of the forest of all the ponies she calls her friends.

~ Brandon T. Snider