I never did comparisons of my past works, but on my view, Area41 was the most important and precious map I ever did. So I did some image comparison artwork that you can check them out below:
http://steamcommunity.com/shar…filedetails/?id=451574013 (Surface)
http://steamcommunity.com/shar…filedetails/?id=451574328 (Entrance)
http://steamcommunity.com/shar…filedetails/?id=451574517 (Tunnels)
http://steamcommunity.com/shar…filedetails/?id=451574826 (Storage)
http://steamcommunity.com/shar…filedetails/?id=451575123 (Elevator)
http://steamcommunity.com/shar…filedetails/?id=451575391 (Sewer)
http://steamcommunity.com/shar…filedetails/?id=451575692 (Offices)
http://steamcommunity.com/shar…filedetails/?id=451576102 (Lab)
I would appreciate any thumbs up if you like one of them! Maybe one day I do one of Core Complex, and then Bar? 
Thanks for checking these comparisons!
Cheers.
