The atmosphere is not so obvious here because the HDRI is blurry from being low res. I’ve found another tutorial on environments, this time on Learn Squared. It’s going for the stylized look, not sure if the above image qualifies for that. Part of his process involves sculpting individual leaves in ZBrush, going for a low poly, game engine result!! Crazy, I know. Of course, lots of baking of textures so I guess it works. He did work on Ghost of Tsushima, so there’s that.