Gotta say, the one from the classic version looks better than the other two images. From the two screenshots, 2nd one looks better. If you can make it even more darker, then it will be even better. You can take a look at witcher 1's swarm forest(night) as an example.
By the way, the NMC mod had much better environment/area designing than this one. But I guess you are not planning on using resources from that mod.