colour scheme: black and blood red/maroony, or electric blue/dark blue.
size: well, whatever style you prefer, but something that is rather slim, since i wanna link a couple other things in to the sig. say.. 600 x 200?
background: nothing i can think of in particular, do whatever suits your needs to make a sexeh sig D:
text: "Proserpine"
if the sig is exceptionally awesometastic, ill bump up the price that ill pay up to 60 mill. halpmepl0x:(