you've really improved since your last submission, i hope you keep making things like this, and frequently =].
i love how aggressive the background is without making this wall seem angry. brilliant use of colors and while the
concept is simple, you've executed on it near perfectly.
my only problem is the huge stain in the left top corner, which seems like it has a gradient mask over it? if you lighten that whole piece, i think your wall will look a little less severe and point to your themes of humane-ness and perhaps ven desolation.