your sigs are very well put together, I just personally have never liked the fonts you have used, or the color schemes of your sigs, but they are very well designed otherwise
I like them, but I'm a sucker for eye-candy. A lot of the guys here have problems with that specific style... I quess there are just a lot of people out there that use it.
I like the skill and technicalities that the style teaches you, but to really be awsome with it you must step away from the norm...
Good old trendy 3D abstract, yet Arch uses charicterisitics that define his work from others...
Notice the simple block, the picture that is clearly above the image.. instead of the usual overly blended in.
And of course the color and texture choices, simple border and clear text.