First of all, nice work on the overall design. I do similar labels for my beer. Second of all, Ames, eh? Yeah, I graduated from the college located there in 1993. Nice to see people brewing beer there. Go Cyclones!
I dig that you have quite a bit of description in your labels. I used to do the same, but I've gone the way of Surly, or close to Surly, where I try to have a one or two word name for my beers and keep the labels sparse. I call my brewery "Monk Basement" with the phrase, "Mmmmmm...smells like Monk Basement". I'll try to post some later.
A couple of suggestions: 1) Blotchy Bovine is nice, but I thought of Spotted Cow, the beer out of Wisconsin; 2) I am pretty jealous of Hopy-Active as a name - but I think correct grammar would be with two ps; "Hoppy". But then, screw English. 3) Love, Love, LOVE the Bill Murray Beer. Ummmm...What kind of beer is it?