I'm just not sure I get a story out of this, maybe the walking suited men would be better on their own.
There is lots of artifacts from processing, maybe clean all that up, and really work on smoothing out the inanimate objects, and making the men harsh invaders in a smooth clean world, that their roughness is their humanity...
Visually its not very strong the way it is now, so some sort of story to think about would help carry the image.
If you had one without the big blurry foot, that might be better, although I guess the blurry foot, becomes the entering focal point if thats what you want, again whats your story...