Vanilla 4XMSAA+4XTRSSAA
Sikkmod+Textures +4XMSAA+4XTRSSAA
Taking both those screenshots in a separate window and quickly switching between them with Ctrl+Tab, I honestly prefer vanilla for it's clarity. The Sikkmod appears to add lens flare which seems to blur the monitor to the side of the door. Vanilla just looks more crisp overall apart from the textures on the door frame itself.
When did you start PC gaming?