i think theyre too long and too thin, when making sigs u want to make them thinner and a bit taller...
dont fancy the text in any of them, xept maybe the last one
and one last thing... theyre VERY busy, u wanna try use negative spacing and i think in ur case, less brushing, more effects on them...
eg: duplicate liquify blend merge

think u did best in #2 but the text >.<

www.sigoftheweek.com <-- insane stuff... when its finished being updated =/

mystuff: