THIS PAGE, CLOCKWISE FROM TOP LEFT Concept art and still for the Piltover Council; Mel's notes for her speech in Episode 201; Jayce's Progress Day speech; emblems for members of the Piltover Council; funeral invitation from Episode 201

What I can assume is a letter opener + Sigils/symbols of the council members

Letter with Jinx's doodles saying "Boring" and "Bla bla bla"

More Jinx doodles

THE COUNCIL & THE CHEM-BARONS

BOTH PILTOVER AND ZAUN FEATURE ELITE GROUPS that the more or less run the political show. On the topside, it's Council; in the underground city, it's a cartel of criminal individuals known as the chem-barons. Fortiche really went to town with these characters, who sport some of the most fanciful designs in the entire show. Amusingly, the two groups are like Bizarro versions of each other, further pushing the concept of dualities. This is most obvious in the characters of the Council member and eminent scientist Heimerdinger and his underworld counterpart, leads Smeech. Tellingly, Smeech the Scrap Hackers, which specialize in body modifications of all kinds. The chem-barons have very distinctive visuals, as if Clive Barker had decided to design Victorian narco-gangsters. According to Arnaud-Loris Baudry, Fortiche drew inspiration from various Batman villains. "We wanted them to be a bit cartoonish-not grotesque," he said. "We designed all of them to have goons that are connected to their fantasy." Director Bart Maunoury is an avowed fan of the chembarons, saying that "they are characters I'd love to use again if we ever do other projects in this universe. We don't do comedy much in Arcane, and they brought in a dose of fun and entertainment that was just great. When you see Smeech, with his mechanical arms that unfold every which way, you just want to film him with a short lens that will create crazy angles. Those are the scenes where we allowed ourselves to look toward anime, because it suited the character's design."

CENTER LEFT Emblems for members of the chem-barons

ABOVE Concept art for the chem-barons

(Jinx drew a crown on Silco's head and mustaches on everyone)

Chem-Barons' Emblems (with additional commentary from Jinx: "laaame"). In order (from the Official LoL Wiki): Margot, Finn and Chross

BELOW FROM LEFT Unused explorations for Zaun's vehicles; chem-barons' glass boardroom

Zaun's vehicles

We can see the final version in the background in S1EP4 (starting at 17:03) when Sevika is walking around the undercity towards the Last Drop.

And this is all for today!

Edit (forgot to add): We can assume this was the first sketch for Jinx's wanted poster in front of Mel.