https://www.gamespot.com/articles/splatoon-2s-halloween-splatfest-now-over-here-are-/1100-6454053/

UPDATE: Nintendo has announced the results for the latest Splatfest, and Team Vampire has been declared the winner. It was a clean sweep for Team Vampire, edging out Team Werewolf in all three categories to take home this month's competition.

All Splatfest t-shirts will automatically be returned the next time you log on. Everyone who participated in the event will also receive a number of Super Sea Snails depending on the Splatfest title you achieved.