New stuff are Clouds and the sunset background. I mainly uploaded this for the cloud material which is volumetric. The old background clouds are still there but they were too much of a hassle for a sunset so I just turned down the color ramp slider. You can easily put them back in by doing the same. To properly use the volumetric clouds make sure they are a little bit above the water and in the whole render area. Rotate and move it but don't scale the cube. Instead go in edit mode and move the faces. If you have no clouds make sure volumetric distance is set to 1000m in render settings.