I've made a Reshade for AVP 2 that improves the graphics and visuals of the original game.
You can download them in AVP 2 Nexus and AVP 2 Moddb.
Links:
https://www.nexusmods.com/aliensvspredator2/mods/812
https://www.moddb.com/games/aliens-vs-predator-2/addons/improved-graphics-reshade
Just remember to set up the dgvoodoo2 on your AVP 2 main folder in order to install reshade in the game.
Link of the tutorial:
https://www.avpgalaxy.net/forum/index.php?topic=66636.msg2608861#msg2608861