I love both of the new ones, but I think I'd have to say the first of the new tiles looks the best even though I have always liked the second style. It's simple, and it's appealing and doesn't look overly done. It will also be easier to animate smoothly, in my opinion.
On a side note, the ground tile transition from the pier to the dirt path looks a little rough, especially the bare pieces you have broken from the pier tiles. They just seem to be floating there above the dirt.
Either way, loving the look of this tileset.