Well, you're good at static art...
...and perspective, and that stuff, but the animation was a bit.... well, ok, experimental.
The robots just kinda skated along the floor, didn't really lift their legs...
But the overall art does look impressive. I suggest you practice the actual animating some more, and then you could blow us all over with a brilliant flash.
And maybe speed it up a bit... ever watched action films? Bam! action, more action etc...
This was a bit... dull. :/
And maybe also anothre suggestion would be checking some more about physics?
A heavy robot like that could never land so lighty o_0'
I hope this helps.
-Glun*