Thor Who holds the hammer?

The main problem I had with this was unclear tone.


Is this a super serious superhero story about a supervillian attempting to commit an intergalactic genocide and it's meant to be somber and dramatic? Or is this supposed to humorous comic book where three Thors make fun of each other, drink with themselves (haha, get it?), get to meet his future, attractive granddaughters (one of which makes a pass at him), and slap each other with space sharks? I'm a little confused and that's frustrating for me. It's not impossible to mix humor and drama, but there's a limit when you're trying to go for such extremes.

Sigh, space sharks...