Infographic _ Search your favorite web browser for "infographic templates PowerPoint". A couple of free template sites I found for PowerPoint infographics (as of this writing) are Visual.ly and Infogr.am. My favorite templates resource is PresenterMedia.com which is all_PowerPoint_based. It also has a plethora of clipart, animations, and customizable clipart. There's an annual fee for PresenterMedia but it's well worth it if you do a lot of visualizations and create a lot of presentations. The alternative to using templates to create infographics is to create a PowerPoint "slide" however long you want your infographic to be. Do this by using the "Design" and "Page Setup" selections to set the length and width of the page size. Then use shapes, graphics, and colors to create your infographic.
Composite photos _ These are photos with text or other graphics superimposed on the photo. I do this a lot with the quotations I post on social media and put into my newsletters. Import a photo into PowerPoint and expand it as large as you can on a slide. "Insert Shapes" and insert a text box onto the slide over the photo. Type the text you want to superimpose onto the photo and set the text color so that it contrasts nicely with the photo as background. Group the components and you have a composite photo.