I really like the joke, and the plague doctor guy looks great. I like the style, colors and design of him, with those more vibrant colors accentuating once again that everything is indeed fine, and that he's an interesting, fun and cool guy. I really like the light on the tongue, it looks really cool. The lighting in general is really good. Like I said at the start, the joke is great. I love the person crying next to the burning building. I like the lack of detail on the other people that distinguishes them from the protagonist as just regular people. The guy heading towards bird-boy's intentions could be a bit clearer though. His facial expression says he's angry and not running away, but his stance says he's running, and it doesn't seem like he's running to teach the guy a lesson. I hope you know what I mean.
Great job overall though, very funny and cool!