Kolorkraft (Krayonkraft) is a texture-pack for Minecraft beta 1.7.3 that aims for a bright and colorful pastel aesthetic. This is the skin that is meant to be used with it.
She is simply just referred to as the traveler, she has no back story or anything it is literally just a character that I made up on the spot.

This model is compatible with Minecraft, Minecraft classic and Minetest