What seems odd to me is in the slightly cropped image the dirt and plants on the right in the foreground seem to be perfectly in focus, whereas the stuff in the left that looks to be the same distance away from the camera is not in focus at all. So, top left and bottom right are in focus, and top right and bottom left are out? Just an observation, I don't know enough about optics to give any meaningful guestimates of what is going on.