This has to be the funniest photo of the image. The light and focus on the microscope is good, and compositionally well placed. Of course it is the photograph under the microscope that makes this stand out. Not only is it funny but it also makes an interesting statement, as well as a scary thought about what could be seen while looking through it. At first glance it's a little bland, but I think it certainly makes up for it by being clever and humorous. Something I could certainly see in advertising.
Hee hee. Is it that small that you need a microscope? LOL
You have taken a normal shot of a microscope that could have been very plain and kicked it up a notch with that cut out picture. Lighting and focus are very good. Great imagination.
LOL. Interesting slide. A black background would have helped the photo though. It would both add contrast and more resemble a typical science class table (or at least the ones at my school)