Historical Braum skin concept: Poilu Braum (for the history buffs)
We have a few historical skins in LoL: Ironside Malphite, Red Baron Corki, Baron Von Veigar, etc.
During the Great War, the French soldier was known as a Poilu, a hairy man with a big, scruffy mustache. It would be cool to see Braum in the old blue/grey uniform. Here are some references:
https://i.pinimg.com/originals/78/1a/f8/781af89f8fb01ac9443d956d9566a55d.jpg
https://i.pinimg.com/originals/bc/6e/c1/bc6ec160f5f304ab7a3b010803129165.jpg
Also, when he puts his shield up, he has to say 'Ils ne passeront pas' "They shall not pass"