...here are a few more:
The first one used an in render effects tool (Nerd3D’s Fog Tool Deluxe available here) to create fog effect in the background. While it creates some stunning lifelike fog effects it is very memory intensive during the rendering process.
The second made use of both a sepia and softglow filter in Postwork tot achieve the “old faded photo” look.
The third was done with layered “billboard” effects planes (Jepe’s SteamZ) inserted in the scene prior to rendering.
In the fourth pic, while only used in part of the scene, a postworked softglow effect was used on the candle flames and peace sign tree topper..
In the final one to get the “old B &W” cinema look, I used a combination of postwork effects including softglow, and adjustments to brightness and contrast.
The pic I posted in the response above used the Atmospheric Effects Cameras by Age of Armour which is available here in the Daz Store.