yeah a couple of years ago i took like a 6 month break and when i got back into it i forgot all the keyboard shortcuts and how to do basically everything. comes back fast at least
overall nice sig, though you probably know id say its too dark
the only thing i might try is switching your border from white to yellow...since the theme of the sig is based of blacks and yellows. might add a tad of extra color but at the same time keep it dark. it might look like dog-poo....but id see how it looks
I like the dark feeling as long as you do something to bring out his face. Right now the wings in his shoulders look like the focal point. I would try to lighten up the face just a touch. Other than that I like it.