i think the bkg needed more deep colors (if you added some blue to it for example), and i notice the bkg looks kinda blurry compared to the psds. So to make it stand out, why not add a sharpen filter to it? then dublicate the layer and that second layer set it to soft light. try it and see how it will turn out with you. (all of that just on the bkg layers not including the psds in these changes).