LTTP - I do love your transparent water effects, and it doesn't so much look like the NPCs are standing on the water to me, as upon closer inspection it does seem they are partially submerged. I'll admit the pine trees look odd, but not due to clash, more due to composition. Their arrangement just looks slightly odd. Otherwise, it's a good-looking shot.
Anthus - I actually think this mixing of tiles looks nice. The only two issues I really have are that the mountains are the only thing that don't seem to fit in, and the colors seem off. A bit of tweaking, and this is a nice-looking style you got going. And like others have said, it definitely has the best composition of the three overall. So, my vote went here. 
Franky - Fairly strong composition, I'd say. Not entirely fond of the style but you designed it well. The two parallel stalagmites kind of bug me, but otherwise, it's well designed.
And a special thanks to NoeL, whose submission was an attempt to help get the contest along. Unfortunately as it wasn't taken in ZC, it couldn't be used in the contest, but it was too good not to include in the opening post. 