dude, if u dont border because u dont KNOW how to, grab rect. tool over the top in a cinema style its just one big rect. and go to edit -> fill -> from dropdown choose black and ok

then hold alt with the filled in layer selected and click it, it will duplicate, drag it to bottom and ur done

not enough blending, try using smudge, and dont have ur render cover up TOO much of the sig, wont look good