Very nice render. Path and rider are great indeed, also the little village nestled along the lakes.
But I do have some points to make, some personal.
1. It's a very busy piece, so I would leave out or greatly reduce the heavy cloud in 'appearance'. I personally don't like very heavy clouds.
2. If you leave the clouds; the tops are very washed out (on my monitor).
3. Smoke from the house indeed; you can warp it by x or Z, and have it fade in height if you use inverted and make the 'base' whispy or soft, or by distribution shader mask. Easier is to just paint it in, which I mostly do.
4. Your images often have the feeling of miniature landscapes or dioramas. I don't know why that is. Atmo settings? Or the lens; I have a feeling the horizontal FOV in this render is much less than 60, which brings the far mountain much to the front en condeses the lakes. This does however give a great sense of coulisse, also by the tree stands and fog.