Long and short of it, this is an excellent small set of paper zombie dogs for any horror campaign. As such, this review will be pretty cut and dry:
The good: For what they are, the dogs are nicely detailed. Not overly so, but plenty enough for some nice tokens/standees. The variety of colors is nice, also, since it means all 4 dogs of your pack attacking the PCs aren't all the same. Bonus, the colors are different enough that you can still tell the difference if they're printed B&W.
The bad: Well, they're all the same design with different color palettes, aren't they? To be honest that's really not horrible, it's 3 bucks, after all. I'd love to see different poses, or even different positions of the wounds, but I'm not too sore about it because what's there is good and the colors are good, so I'm good with where it's at.
The ugly: The dude. Well, he's fine, I'm just not all about his pose (he kind of has that constant "Oh $%@# falling backward!" look to him). Somewhat humorous, I guess. And he's just the same as the one in the The Last Man Standing set but with a coat. I guess I'd rather they'd went ahead and either put a new guy, new pose, or just left him out and made this a zombie dog pack, since if you combine it with the other you're likely to just waste one of these guys since he's redundant. (Unless you like the idea of playing dress-up with him - "Well, it's cold outside, so I'll go ahead put his coat on" [switches minis] ).
Bonus: it's very easy to do some photo-editing to remove the zombie-wounds if you want to have regular dogs (or be sneaky, and let your PCs think they're regular-NOPE gotcha' they're zombified!), which is something you really can't do with most other zombified things. So really, this pack is even more value.
TLDR: Excellent, easy to use, builds nicely, come here for cheap dogs for your game, zombified or otherwise.