Here it is reworked. Render time was 23 hours.
Oops
Water will suck up your render cycles. What kind of machine you using to render?
Nice ;)
One thing to mention is the tree population at the back. Not sure if they will grow like that...like on the rock on the mountain...hmmm ???
good job
but 23 hours wooooow
what's your machine and the settings you have used in render parameters ?