Quitely art is a subject of a separate discussion. I confess that sometimes I love it and sometimes I hate it. I suspect it depends how much care he takes. The more time he has, the better the outcome.
it's stand alone. You do need to be familiar with Watchmen to get the full impact of the story, but I doubt any comic book fan these days is unfamiliar with Watchmen.
In fact, that's all Lothar does these days - watch men.
Definitely stand alone. I have no idea what Multiversity is about and have no interest in it.
And Lothar stopped watching men since he copped the mace in the eyes.
