Someday I hope to make things like that...
I spent the past year learning how to create that kind of atmosphere with flash. I've been striving for something like Bitey of Brackenwood, but I now have something else to emulate.
I could probably spend a few thousand words going over everything I thought was amazing about this. However I don't think that's necessary - it's just too obvious.
Everything from the little details (hanging the key outside, for instance) to the coloring (making a snowy, 2-tone forest look like it's alive is no small task), to the character designs, animation, lighting, effects and basically everything is exactly what I'd like to create.
I hope to see more of your work.