First of all, it looks great. Absolutely beautiful. The one-page rpg at the end is quite the flex (and is a really interesting system). This jungle is full of cool things to encounter and get tangled up with. The rival party is a nice touch to add some extra flavor and stakes to the adventure. Having the characters not be outright heroic but willing to risk and attempt to wipe out this jungle (even if the jungle is pretty horrible) for the sake of personal profit also feels very Appendix N.