It was a pretty dusty sign, but I did my best. 
I may go back and get rid of the shadow on the first picture later, but I spent a good few hours on these.
The shadows took the longest to do, with all the color/shade matching.
Above: Edited
Below: Original
_________________________________________________________________________________
Above: Original
Below: Edited
 _________________________________________________________________________________
 Above: Edited
Below: Original
_________________________________________________________________________________
 Above: Edited
Below: Original