I'm sure most of you are already familiar with ReShade, but i will list the simple steps required for installation. Textures are sharper, anti-aliasing is better, lighting behaves in more eye pleasing ways aimed to approximate realistic environments.
What my preset is aimed at is non-intrusive ways to significantly improve imagine quality. I spent some time tweaking a preset for Shadow of Chernobyl that i am satisfied with, available for download. ReShade is a configurable tool to inject effects into video games that they otherwise wouldn't support, essentially making the game look much better, provided the configuration is good enough. Note: If you use ReShade then you do not need to use the optional SMAA Injector! ReShade Tutorial & Custom Preset Download