Context: Features champions representing some of the teams qualified for Worlds quarterfinals (RNG, EDG and G2). Logos from other qualified teams are around the door. Man about to leave and the door have some of the eliminated teams (VIT, PVB and GEN.G). Also check out the ad boards for player appearances!

From MissGhoster, who shared this on the League of Legends subreddit:

G2 Yasuo with the Black Cleaver pin on his jacket
Next to Yasuo, the graffiti says 龍神の剣を喰らえ! HASAKI
Teemo mushroom under EDG Jinx
The crossed-off SKT logo on the subway door ;_;
Chinese characters on the subway pole next to Vayne: "可惜"(pitiful) is what Doinb said after RW (Rogue Warriors) failed to make Worlds through LPL gauntlet