Are you okay if I change a bit the cyan fog color (looks cool but too cyan, sky is rather yellow there).
And change the pipe material from orange to 2 other (yellow or cyan IDK yet), I don't like orange pipes, I find it fit for red terrain.
I also fixed terrain layers. You picked Triplanar1 on all layers, it's meant for only 1, this which has highest slopes (it is the first here). I think you won't see this difference since this is probably used from High settings or so.
Hmm sun is completely somewhere else than where the shadow falls.
There is a wrong checkpoint on crossing of pipes. Heh, I see you don't care for checkpoints (chkR 1.7 is for pipes
)
I'm fixing those.