Looking for freelancer who can refine the available presentation

I am looking for a freelancer to refine a presentation intended for colleagues. The purpose of the presentation is to inform and I would like it to be in a corporate design style. I am looking for a freelancer who can modify and refine the available presentation to meet these criteria. The completed presentation should have a professional look that conveys the information clearly and compellingly to the target audience. I'm looking for someone who is experienced in creating engaging presentations and who can help me create an impressive end product.