This is my entry for the Lightning Returns: Final Fantasy XIII contest.
For this design, as the title says, I decided to get inspiration from the Myth of Beowulf: a Northern warrior from Geats (in Sweden) whose name can be translated as "Thor Wolf" or "War Wolf" among others.
The wolf analogy works pretty well in this episode since Lightning is alone, oustide of her "pack", hence the fur all over the outfit. I wanted to stay in the Northern references as the rest of the game (Valhalla, Odin, Lightning as a Valkyrie in FFXIII-2 etc).
The Myth of Beowulf is also divided in 3 parts like FFXIII with a 3rd part that tells a warrior's last battle. I also wanted the outfit to be less "godly" than hers in FFXIII-2 since the 3rd episode focuses on her humanity, so no shiny full body armor with feathers.
The cloak was partly inspired by Star Wars (lol), kinda like Luke in Episode VI (end of the original trilogy) who came back as a Jedi Master (sort of).