Ben Halstead:

Great! Watch out for frozen parts in your animation where a character stops moving completely. Unless it's done as part of a very careful style, this can make it look a bit unnatural.

Nathan Greensmith:

Nice scene, good animation, good work.

Bruno de Coninck:

I suggest you to add some ease-in ease-out in general. Some breaking poses could help too. For now, your characters seems to float from pose to pose. Except those two points, it is a good start.

Kyle Novak:

old man seems just as lithe as the young one.

Paula Decanini:

Very pose-to-pose. Needs offsetting and overlaps.