The 'Rider of the Storm' Set is victorious, but looking back on all submissions, everyone can count themselves as winners.
Many people have been asking about what the winners get and Valve states it in their blog:
"The winning sets will ship in next week’s Frostivus update. The winners will receive a share of sales, special versions of their items, and a custom trophy-ward to show off their accomplishment in game."
Without further ado, here is the winning set.
Disruptor's Rider of the Storm Set by Danidem & Hunter:
If you want to know what criteria were important and why they chose this submission, make sure to read the full blog here.