graphically it's not bad. I'd add a bit of drop shadow to the text because it's a little contrasty over the gun. red text over a red gun makes it a little hard to read.
Generally I like to blur my vision a little (pretending I'm tired) and If I can still read it, it's good to go, but there's a lot graphically in this thumb that's fighting for attention, where as I'd focus on visual heirachy (that's a design PRINCIPLE that's not often talked about)