Keyboard Kahuna

Logo for a company that produce keyboard shortcut sheets for various Apple applications etc. The icon character is formed from two letter K's, with the head and icon container reflecting the shape of a key.

Pretty much there on the logo, just some tweaks to make to he icon. A more detailed version of the icon is in progress which I will be seeking feedback on.

Just one challenge so far, trying to hold the detail in the hair at favicon size. Not sure I can get it any better than what you see at the smallest size?