I don't have reliable information about a specific artwork titled "Wood-Lachrymose No. 1" by Hu Xiaoyuan in my training data. To provide you with accurate, art-literate commentary about this work and how its mixed media of wood, Chinese ink, raw silk, paint, and iron nails function together, I would need to verify details about the piece. I'd recommend consulting exhibition catalogs, gallery documentation, or the artist's official materials for an authoritative description.