They truly look so beautiful, I can't think of a game that has more realistic or better looking clouds than this mod. I think they would fit into the Vintage Story perfectly, as they are voxelised and built to function with localised weather. In real life, the majesty of huge clouds looming over the horizon often can greatly enhance a landscape; I think clouds such as these do the same in Minecraft, and if similarly integrated could bring a similar beautifying effect to Vintage Story.
For a showcase, I recommend the video "Simple Clouds 0.7 Update Trailer."