Nice sigs there! Loving the flows and colors!
Since sacred added some of hes, i though i might do that aswell :P
I used to spend alot of time making sigs and stuff (couple of years ago) when i ran a design forum.
Heres some of the work i did
http://i220.photobucket.com/albums/d..._braincopy.png
http://i220.photobucket.com/albums/d...SOTW27copy.png
http://i220.photobucket.com/albums/d...rcWW/manii.png
http://i220.photobucket.com/albums/d...ty_lifcopy.png
http://i220.photobucket.com/albums/d.../clownsigg.png
http://i220.photobucket.com/albums/d...zodiacv2-1.png
http://i220.photobucket.com/albums/d...cWW/tecni2.png