Beautiful song, is one of those that could sound heart warming or melancholic depending on how if heard. I really love it! I keep replaying the animation just so that I can hear it.

The character has a weird design and proportions, due to this the walking looks pretty natural when it most cases I would think it looks bad because is not realistic looking but since it is quite cartoony it works alright. There is not much going on on the animation so even though it looks pretty good and the music is wonderful, it looks as if the animation is just filler to share your song rather than being visual entertainment. You should consider also uploading your songs alone as audio rather than movies. By all means keep animating, just try to keep the visuals interesting. For example, the character could have keep walking forever as you have here but maybe the background could change once in a while. It could be abstract shapes representing thoughts/hallucinations or it could be scenery that shows how much he has walked.