As already mentioned, way too simple. Some green photo filter on another layer with less opacity would have made it look better color-wise. The placement is perfect though and so is the quality. No really need of text there as you're improving on the colors and getting the avatar well colored with. So, keep up the good works and don't be afraid playing with stuff, play around the effects and adjustments, if they aren't looking good then you'll know, same goes for text and keep in mind, don't overdo stuff while playing and experimenting.