Graphic Designer Required For Banner Making

I need a Graphic expert who can design eye catching Social media banners and info graphics. My business is establish in USA, Canada and we deal in various Herbal Tea as well as Shilajet. We need banner images with some taglines and catchy quotes. You will get all the text you need in this. I already have a content writer for this. Show me some of your previous work. I also have some references and will show, when you send proposal.