Steam Fog

This is my drawing of a steam fog forming over a lake (where some mountains are distant) by cold air (that's the bluish streaks) blowing over a warm lake.

The fog is gray instead of white because it's visible light from the sun scattering in all directions on the cloud that makes it white, but it only happens from the sun, yet this is a nighttime scene.

UPDATE: Changing the sky part of the reflection.