Slice of Red Onion

I've been playing around with some food photos for another macro photo project. I was happy with the way this photo of a slice of red onion turned out. I cut the onion very thin and put it on a thin, opaque piece of plastic that folks use to make stencils. I like it because it looks a lot like a plastic cutting board. The stencil is supported on a thin piece of glass. That lets me put a flash unit underneath so most of the light for the image is coming through the onion rather than being reflected from the surface. It's an interesting effect for semi-transparent subjects.