Interesting
I liked it, i really did, even from the opening credits i noticed how i liked it alot :P
Some main points i did notice
1. Butter sounds like foamy ^-^
2. It sounds like its voiced by one person (though i think it may be, i was too lazy to read the credits :P) maybe a diversity of voice tones in the next one? I think that would boost it a little further. Also anyone with a different accent for real will be a definate plus.
3. Loved the animation and the music
4. Though it was short for my liking, but this is also a good thing, as i want to watch more now, which means you got my attention, got me hooked and left me wanting.
A rare feat.
Looking forward to episode 3 =]