intro is pretty damn epic (the handshake), but it kinda goes downhill from there
1 humor for that badger bashing in it's own skull.
If this wasn't named eagle and fox, I'd swear it was a crow and a badger. That being a side issue, the key is to find reference for your work. Find a fox walk cycle, or a dog for that matter seeing as their movement is similar. Find a flying cycle of a bird to understand how birds fly. Your lack of animation basics coupled with no familiarity on your characters just killed it for you. You even did a close up on the walk cycles. You'd think that creating a decent cycle would have been higher on your list than drawing shadows around the edges of everything.
Don't worry about the guy before you. He is probably just some smart ass college student who just took a class on animal biology. the fact that candids are digitigrade(essentially, they don't stand on their entire foot when they walk) has no bearing on the effect of the animation. It looked good, had an obvioud message, and was not rushed. I could tell you put a lot of work into this. Good Job. Hoever, the music did not fit AT all =P
No sound effects and melodramatic music makes it weird, in an uneasy way.
You drew the fox as a plantigrade. Canids are digitigrades.
I didn't know Aesop wrote that... I only knew him for one of my favorite quotes "No act of kindness, no matter how small, is ever wasted"
This flash was well done though. I especially enjoyed the ending =P