nice start dude!!!!
suggestion i gots are:
check back to where shen was giving me tips, and toss a couple despeckle's on the cover pic and the other pics to fix the grains
also on the back on your txt you should zoom in, cause on the stuff like your letter o's and a's and such, their is the old shade of grey/black crap stuff, so i'd say zoom in on that stuff, magic wand select it, then paint it to match the rest kinda thing