Excellent work! I like the coffin (it appears you built it to be partially sticking out of the ground? Great effect!). Your tombstones look very, very nice. I do have one suggestion; the moss on the tombstones looks good, but make sure it doesn't look like it only appears on the tombstones. Scatter some pieces in various well-lit sections of the yard so it looks more like a native plant to your yard. This makes the "seam" between prop and environment blur and lends more reality to your scene. Good job and happy haunting!