On both signatures, the renders are WAY TO FUCKING sharp
Remove the red light source on #1 It looks weird
the font on #1 should be changed
#1 needs more depth
#2 Is actually quite nice, the left side is a bit to dark, lighten it up abit, maybe use some c4ds or something, other effects than just rippling the render & blurring it, don't stop trying!
Good job!