Now, for further comparison, here's an awesome face shrunk down to 20x20.
See the difference? The line at the side of the Awesome Meat mouth is way too long.
Not to mention it's not large enough and the eyes are too square... I'll see if I can edit it sum moar.
No wonder it looks off, you based it off of a terrible resized version.
The line at the side of the mouth is not too long, as you can clearly see here:
Plus I intentionally left the shape of the eyes alone to keep it more consistent with the other emoticons.