It felt... cliche.
I mean, Winnie the Pooh going ape shit for honey? Treating it like it's heroin itself? This sort of joke has been overdone. Besides the original joke itself you didn't really build anything else, just him sitting around for a bit bitching for a little bit.
I understand the animation is suppose to be short but you could of at least put a little more effort into the script itself.
The visuals were nice, the animation was basic but that's all that's really required for a yellow bear sitting around. The voice acting was spot on mind you.
Finally, I'm not sure you need 20 second long credits for an animation that lasts close to that long.