Costume made and modeled by Beebichu. Original costume design copyright Bethesda Softworks.
Photos by RDC Photography, Andrew Snucins Photography, and Desirée Marie of Into The New Photography.
This costume is originally designed by Bethesda Softworks for their videogame Elderscrolls V: Skyrim. Called Nightingale Armor, it is a set your character receives in the game for completing a group of Thieves Guild quests. The bow and sword you see in my pictures below are also made by me and I tried to make them look as close to the game versions as possible.
For a detailed DIY of how I made my costume click here.