This is a realistic scene with Bacillus bacterial cells. It is good for animations, scientific demonstrations, or commercial uses, such as advertisments. These Bacterias look absolutely like in real life. What you see is what you get, just open the scene, hit render and you got the result. This scene includes 2 different background types and 2 additional overlays to simulate realistic microscope grain and microscope view. While grain adds more realistic look, microscope view overlay adds a nice flavour to the picture.