Visualize a photorealistic steampunk-themed medical device, a photoplethysmograph, with a unique modification: each dial is replaced by a face with human features, each displaying a contented expression. This device maintains the intricate steampunk design of brass and copper components, tubes, and intricate wiring, combined with polished wooden accents. Victorian-era steampunk elements, like ornate metalwork, are evident. The faces on the dials add a surreal touch to the device, each showing a peaceful, contented expression. The device is set on an antique wooden desk, lit by warm, ambient light, enhancing the detailed craftsmanship and the whimsical faces.