I tried my best.
Unfortunately, when you use small palate like doodads (or even temple) you run serious risks of blocks.
The outside looks wonderful, and I like those sprites there to cover up the water, don't change them (you can't anyway).
Unless you have a good reason for the sprites in the middle, you can avoid most of those. The inside corners are tricky, and lord knows I've tried every combination to get those to look good without sprites. It doesn't. For sprite uses there, get creative. You might use a crane (installation?), perhaps some wreckage (desert/ice). That is, of course, unless you have a specific use for what looks to be a track of some sort in the middle.
One more utterly unuseful thing:
It kinda loses its effect when it's shrunken down, though.