there was such a post, but after banning the guy (again) who made them, it was taken down
the shadow/arma/crysis/MK mod enables hidden lighting tweaks in the global and uniform files that change the direction and intensity of light on the players and uniforms. this allowed for darker shadows and less of a washed out look that comes default with the game.
the photo mod is a filter applied over each frame of the game using ENB Series. Think of it as saving a screenshot, opening it in photoshop, applying some contrast and other filters, and then saving it.....except this happens as the game is running so it can affect the fps of lower quality computers.
you can find the latest versions of these mods on his blogspot
http://johndoe22.blogspot.com/