It’s hard to get a good photo when the surface of the underlying scraped board is so reflective.  I’ve been playing with scraper board art, in the 1st and 2nd pictures the holographic surface changed colour due to the angle of the light hitting it. The image is based on a photo of my cat. The 3rd and 4th are a copper colour, the horse was made up from my imagination. The underlying board was metallic not holographic but still changed colour based on the angle of incidence of the light.