Essential Graphics

This may seem like a pretty noob question, but does anyone know of a way to use After Effects Essential Graphics to replace a jpeg image asset in a template.
Basically i have about 110 slides of speakers that need to pop up at a conference. A lot of the info is the same but speaker image and name will need to change for sure. I want to make a template to use in premiere but cant work out how to add a property to swap out the jpeg of the speaker.
Anyone well versed in essential graphics panel can tell me if this is even possible???