I think you need to work on readability in your designs. You cannot see the orange skull against the orange background on your skins, and your loosing the same definition in the sticker. The S.O.S banner looks a little lazy to be honest, it's all straign angles, very flat, with unevenly placed text. again you can't make out the letters clearly because of a lack of contrast.
I think your ideas are great but you need to spend a little more time in photoshop!