Quadrant O7, I just noticed I missed one of those reeds up there, going to fix it right after this post.
Quadrant P7 has... water, roots, and trees, same as the rest, awesome.
Quadrant M8...
Quadrant N8...
Quadrant O8, same as the rest...OH WAIT quadrants M through O8 all have trees added to them to make up for the lack of cliffs, there's some info.