I like the concept, but when I imagined it before clicking the thread, what came to mind was a villager dressed in fisherman's clothing (bucket hat, vest, boots, etc.) Though your models look interesting personally I don't think they make too much sense. Perhaps similar to the witch is villager-like, yet isn't categorized as a standard villager, and does not have a natural enemy, perhaps the angler could go on the same concept. I think a possible idea would be for him to spawn on islands in the ocean with a small house with a path leading to a dock. That would add a logical addition to the game, while making oceans more interesting. Perhaps as decoration in the anglers' home it would contain item frames on the wall with fish framed up (similar to how people have "trophy" fish on display in their home). Nice idea!