Elder Scrolls IV: Oblivion - Zensalin's Oblivion Overhaul
This clip is from Burn Spot on Youtube you can see some things from ZOO and many from other mods , the following is a quote from his video description: "A short snippet from my first-ever playthrough of Oblivion and part of the Pilgrimage quest for the Knights of the Nine DLC. I've played the heck out of Morrowind and Skyrim, but, for some reason, passed over Oblivion (for Mass Effect probably)...fixing that oversight now.
Just a test, really. Using Zensalin's Oblivion Overhaul and a plethora of other mods such as L.A.M.E., Realistic Leveling, OCO, All Natural, GECK, and more."