I do NOT like the new bright borders. I think they contrast the ground waaay to much. In fact, I like everything better from the version labeled "Older". New grass looks less like grass, new sand just looks like random pixels, and new water doesn't look as wet with so much less contrast.
Sorry if I'm coming off as harsh, but I really think you should rethink these changes.
A suggestion for the water: considering the perspective, it might look more realistic to orient the waves horizontally. Also, I wonder if dithering is a good idea there.... since it's water, you don't want it to come off as rough.