I've been looking at your for quiet some time now but I can't really for a definitive opinion. I must admit that I'm feeling a bit uncomfortable [not always a bad thing!] with the slope and all the leaning trees. It might be me only! FWIW, I like the light background with the darker trees… I don't see separation as a problem. I also like the light, sunlit patch of grass at the bottom left of your image.
Need some more time…