Oh my god dude... that Kurt signature is so good it makes me happy. Seriously. But... could you get rid of the big swirly pattern thing next to his head? It doesn't really work with the rest of the signature.
And the Jimmy Page re-worded one is good, but why is the D bigger than the other letters? If you could make it the same size as the others and also make the colour that lighter more transparentish shade, it'd rock.
Also, if anyone wants to give the RATM/Zach de La Rocha signature a shot, it'd be great.