This image looks like a detail from Hieronymus Bosch's depiction of hell in "The Garden of Delights". Image is a fly palpus magnified 450x, and one of my first photomicrographs. This image was obtained with an old B&L microscope using darkfield illumination and with regular negative film. Prepared balsam slide.
This is over my head. It makes a great looking astract though. I suppose it could be used scientifically too... How did you get into photomicrography? My lake picture was taken in the Adirondacks. Unfortunately, I missed your lakes when I was in Minnesota.