Thanks everyone!!
So here’s a mini breakdown of my render passes and how I put them together in Photoshop.
The 2 rim light passes were used together to help bring out some of the forms on the side of the face that would otherwise be lost in the shadow. One rim light is softer and the other slightly tighter. I gave them a contrasting cooler and warmer colour adjustment. Although in the breakdown image below, I’ve just shown them how the appear straight from Zbrush without the colour adjustment. These were then set to a lighten blending mode and the layer opacity lowered. The Shadow pass was set to multiply and the layer opacity also lowered slightly over the beauty pass. I hope this helps. Thanks again