With the recent successes of Community Shaders for Skyrim, I think it's apt that I shout-out Fallout: New Vegas' very own graphics extender, New Vegas Reloaded. While unfortunately only officially available through Discord, New Vegas Reloaded is a true game changer, and is absolutely worth your attention!

(Image Credit goshko on Nexusmods: https://www.nexusmods.com/newvegas/mods/83736)