Hi guys, I've personally finished testing it out and can't see any glitches in the world, however I would like some feedback on how it runs on other machines, personal views etc... There is a .rar file below containing the world files for those interested in giving me feedback.
"Fear is only in our minds. But it takes over all the time."
I personally don't mind the drier grass, it actually gives me a barren, secluded island feel which is authentic.
But still I agree with Johnny's opinion that you should add some grass and flower patches beneath trees, it makes the terrain look better and more natural.
Add some dirt too!
I see from your pictures that the edge of your lot has raised up above the ground level. The best ways I know to fix this are either to raise the ground around the lot to match the lot and/or flatten from the center of the lot outward just past the edges of the lot and/or click on the "Lots - Conform Edges" button. (Looks like a little house with a dotted line around the edges of the lot.)