-bkg is too simple imo. try adding some grudge brushes and pattern shapes as well.
-blend the psd more. Try to add some over-layer on the psd that got a similar brush style as the bkg. Brush at the sides of the psd, try make it to look within the bkg. This gives more smoothness to the viewers to believe in your work more.
-i dunno why u added "Y2J" on there? looks wrong imo.
-You made a big sig but you left it empty imo. Either reduce the size or try to add other things in the sig.. First thing, think about what is related to the main psd. In your case now, try add a logo, save us, 222 text, his entrance pose, or walls of jerricho move as an example.
So basically try to live it up, coz it lacks life right now.