Okay , so theres alot of thing you need to improve.
First of all , its too flat , obviously , you should do some raises , dont base your terrain in the actual image. Make some Small mountains behind that volcano and etc.
Second , the tint color of the Moria Doodads did'nt match in the environment color. Make it a lil green-skyblue color [I mean , reduce the red color]
Third , why the hell did you placed those grasses/ferns in the top of the building D: Replace it with some vines either from utm nor toby's maps [your choice , highly recommend toby's models , they are all high quality]
Fourth , the rocks , its too blurry , maybe because your camera is too near to the rocks , try scaling that rock a bit smaller. Also , raise the camera , its too low for me , add some rolls.
Fifth , the sky , i dont know , maybe you just placed 1 ubercloud? How about making/placing another ubercloud with lower tinting color [Same color , white , just reduce the color/visibility abit]
Sixth , the tiles , obviously , its also blurry for me, i guess its from fingolfin's pack. I suggest toby's tiles , nano's tiles and b2m's tiles , they are all high quality compare to those tiles you've used. Those tiles are only for playable terrains.
Seventh [D: 7th?] , The trees , too spammed , spread them in your terrain instead of making a forest there.
Eight [D: 8th?] , how about adding some huts and farms
Ninth [D: 9th?] , try replacing those smokes with steams.
Tenth [0: 10th?] , details , add some details , small rocks , trashes etc.
Additional:
Lastly , [D: D:] you might want to do this things. I like these suggestions.
Okay , so thats all , no offense , but i think this terrains really need improvements , alot of improvements.
Good Luck