Oh well theres alot to do, honstly i saw better first ones. But i cant really remember how i terrained in my roc times. But hey we didnt knewd all these neat tricks and had all those nice pics to get inspiration from
Anyway lets see how i can help you improving it.
First of all try to place this fountain more middlish or put some hills trees whatever behind it. The end of the world isnt nice.
Add some rocks on the fountain, and maybe by the river. Finally on the small lake you can add some too.
To much tree variation, really go out for a while in a forest, and tell me that you can find so many different trees in the same forest. Ofcourse theyre kinda different but they look almost the same in the end.
(Also going out on a walk is sometimes the best you can do inspiration wise)
If you insist keeping the crystal put it in the fountain, ya know some magic crystal making the water magically.
Dont make the hill look like boobs, add some more heigth variation, and maybe under the river some rock tile.
Put the statue with the ruins part on the right, spam some more ruin doodads and finally fill up the right with some more trees. If you like put some green stuff in the fountain, dunno how those things called floating on the water. Sea Rose Petals? Something like that.
Maybe add a path of dirt near the fountain, so it looks like people come there from time to time. (Also because of the statue)
