old skool stuff nice work on those m8, can be a bit hard trying to get back into PS after a while read up on some tuts and you'll be better in no time.
some nice ideas. avoid using color balances or whatever you did to color your sigs. color that is just added to the top of a sig like that usually isnt very nice. work with the colors that are already in your render. maybe the first step would be still using a color balance, but putting that under the layer of your render. i think coloring is the main thing to work on for you.