https://news.nationalgeographic.com/news/2008/10/photogalleries/best-microscope-photos/index.html?source=email_wn_20081017&email=wn
PHOTOS: Best Microscopic Images of 2008 Announced
Beautiful..ana (see link for the rest!)

First Place: Diatom Rainbows
Sinewy filaments within squirming microscopic diatoms, a type of algae, are artificially rainbow hued as a result of being photographed through polarizing light filters.
Captured by retired British microscopist Michael Stringer, the photo took top prize--and U.S. $3,000--in the 2008 Small World Photomicrography Competition, organizers announced on October 15. Sponsored by Nikon, the annual contest showcases "the beauty and complexity of life as seen through the light microscope."
—Photograph by Michael Stringer/photo courtesy of Nikon Small World.
https://micro.magnet.fsu.edu/micro/gallery.html (We used this one during homeschooling. LOVED it.)
https://www.scienceart.nl/Frames/HOMEpage.htm