Icon for an app i'm making

I just made this in Fireworks. Suggestions/Comments would be very helpful. Right now I’m thinking it’s looking dull for some reason. (By the way, I’m on my mac and this is the first graphic I’ve made so far. If you PC users notice it’s dark please tell me, the gamma on mac’s seem to be a lot brighter and such and I’m not yet used to and I don’t know how to get everything to come out perfect on both PCs and Macs.)

Michael Ishigaki

[EDIT] Okay I uploaded one with the highlight thing brighter.