I love that bridge, but as @Tokusei mentioned, the transition between wood and terrain is quite rough. You could try a decal that blends between the terrain material and an alpha - or maybe add the terrain material as a vertex-painted blend for the bridge :)
following what sir calalot and aimbiz said earlier i did the grass and reeds on the river border and added some decals to hide the intersection between bridge and terrain. I also added some ropes moving in the wind "on" and "under" the bridge to make it a little bit more dynamic. I think i'll be wroking on the tower now.
@riot for quiet thanks you :) @switz Oh i see, I'll see what i can do with thos clouds. @AimBIZ THank you, and yes i agree with you withe that rock texture, as for the grass close to the river, you are right again, but it's something i havn't finished yet, i'm thinking in adding more diferente grass to it to have that kind…