An easy way to increase organic traffic to your website is to make sure your images are SEO-friendly. Google can not actually see your images on your website. So they have no idea what your image is or how they might support your content on the page.
SEO Sherpa has some easy-to-follow image SEO times in this infographic.
Your current website developer can help you with how to do this yourself. If you need to ask questions or need additional help feel free to click here for help