Detail: The Detail is pretty good on this one. The Texture of the Can still looks a bit grainy, but the choice of colors is well made.
Funnyness: I guess everybody has another Comedy Style, but... drinking Piss is kinda creepy and not funny. But if it's related to something funny (which it is) then, yeah. it IS funny.
Originality: Nobody thought about drinking the Jarate I guess :P It was originally made to throw it at enemies xD so taking the idea for the Scout's BONK! Energy drink, so that it looks like he's drinking the Sniper's Piss, is kinda Original :P
Texture: You can't really call this a Texture, more like an Image applied to the Can, which doesn't give it a feel of a real metal can. BUT The Image is still good, except for the grain-ish effect on it. good thing you still team-colored the Jarate font. too bad, the Flag, and the rest of the image isn't seen in v_view. But it's still visible in thirdperson.
One last question: Why is there a pcf included? did you make a new particle effect? because looking at the screenshots, i don't realize that it changed.
Also: you should put your files in the right folders, and put it in the archive then. it's kinda confusing for newer people at installing stuff, even tho you explained in your description. most people don't read it anyway...
Anyways: This is a very cool, original and functional Skin!
9.6/10
Back in Black.