Math Rock Blue Grass? What will they think of next? Eh, I guess it's not too far off the map of tradition (swap out one guitar for banjo). While I do have some gripes with these guys, it's worth a mention for sure as they are poking their fingers out of the box a bit. The vocals? Wellllllll, they need a bit of work. Dude does fine when he's getting into it, but as far as just singing, maybe a bit more care need be taken. This doesn't detract from the overall vibe of enjoyment so not to worry.
Unsure if there really needs to be a tear drop on that pterodactyl. Guy already looks sad as hell.