Hey there
Yeah water has a fresnel on the reflection which makes it less reflective when looking down it. i have planned to add a fresnel slider so you can cheat a bit and get what you need.
As for the fog, thats a tough one, as the way real time engines do reflection, it may not be able to be affected by fog, ill look into it.
import and other stuff coming soon. thanks for being a part of it :)