This image of a rodent optic nerve head showing astrocytes (yellow), contractile proteins (red) and retinal vasculature (green) by Hassanain Qambari and Jayden Dickson won first place at the 2023 NSW Photomicrography competition.
https://www.nikonsmallworld.com/galleries/2023-photomicrography-competition/rodent-optic-nerve-head
I love it when the imaging process is every bit as fascinating and awe-inspiring as the process it illuminates!