That top right panel is supposed to be a visual reference to this linocut, 'Football' by Ethel Spowers, [link]
but I didn't draw it very well. Sucks because I love that picture. Not a fan of the game, though, even though my team won the final yesterday...
I am actually going to cram this thing with so many references it's insane. I'll point out some of them.
Also there are rainforest people who build their houses at the top of massive trees. I saw a documentary on it once. IT IS SO AWESOME I AM INSANELY JEALOUS. Although I don't think they have internet so, you know, win some lose some.