With a little help from friends, also thanks to William for his post, I have opted for eyes. I took a more modest design, not choosing to colour the iris of the eyes, but leaving them natural wood. It seemed to be more in keeping with the rest of the cat. I thought a blast of colour might be a little distracting. So no golden irises for the Trojan Cat, just slitted pupils. Now onto making mice!
Here's how he/she looks now.
Automata is a creative blend of my life interests , engineering, art and woodworking.