Ok I made a signature with a few differences.
The signatures or mainly about the evolution of graphics from dark and/or monochrome (depending on which one your talking about) and 2-D pictures to bright colorfull 3-D pictures.
(I pretty sure monochrome and Grayscale are the same
ok the selection
1:
It has no monchrome color transition but everything else

2:
Grayscale version (only goes part way to full Grayscale[monochrome])

3:
Full grayscale but the color part is duller

and 4:
full color and full Grayscale (The Original Idea)

also can you rate the one you say is the better of them all?