Really nice signature! The render is beautiful and the effects are amazing. The colors and contrast are good too.
I really like it except the "floating head syndrome" thing and those 2 blue scratchy looking lines to the right of the head. Other than that i love the colors and effects.
not bad its nice but i think maybe create some flow, coz theres lots going on in ur tag so maybe work with that. the ffects are nice but could jus be used better i think...nice work.