I think that was a very good idea.The grey is very close to the real falcon.
I made this shot of the Falcon on the SW-Identities last year with no flash.I think the grey is very close..its darker and not so bright like on other pics..
http://up.picr.de/24274760rs.jpg
I tried to do some magic, Not sure if this is better or not...
Great photo either way!
[url]http://i898.photobucket.com/albums/ac190/dtssyst/Falcon%20Reference%20Photos%201/24274760rscolor_zpsnwrhz72c.jpg[/URL]