There is no way that is the cover!!!!
Even if Mackie wasn't designing it, which I'm sure she will, (or atleast have an opinion on whoever does) she wouldn't let this happen. The Star Spangled Banner artwork was pretty bad, but that was a 7". This is a full length record. Some of you may argue that some of their record covers are poorly designed, but you're reacting to the color scheme or subject matter, like the guy who mentioned not liking POTRE. They still took skill to design. You can tell.
C'mon. This is a Melvins LP, not a junior high punk band's demo. The artwork in question is just amateur-first-computer-class-graphic arts, looking. I think someone is shitting us.