Number 4 is a lovely image. I think the tree shadows crossing the path make it more interesting than your run-of-the-mill path shot. Would love to see the original colour version; with the sunlight coming from the side, I assume this was shot either at sunrise or sunset, so the colour of the light was probably a beautiful gold. A personal preference: I'd sharpen it a bit to bring out some of the texture of the tree trunks and fallen leaves.