No, he does have a point though. It just makes it look unrealistic and hard to look at. Try again, this has potential.
Yeah, fix the proportions. As for the sig itself... Looks like all you did is change the contrast and add text. Not the greatest.
These guys are very right, never change the proportions, especially that much... a little bit won't hurt the sig, but this kills it. A better option is smudging the background.