One slide that shows the host OS, guest OS, and hypervisor/VMM for your VM setup.
Slides that provide an example of a server-side defensive practice you could implement for each of the following security categories (one slide for each category):
Deterrent Controls
Preventative Controls
Detective Controls
Corrective Controls
(You may examine the various settings and configuration options in your VM to come up with ideas for each category.)

One slide that includes an example of client-side security recommendations you could recommend to customers using the data or application on your VM server.
And one or more slides making the case for running a cloud system on a VM instead of on a physical server.