Due to excessive competition in the online market in designing there are lots of websites which are serving its customers with a wide variety of PowerPoint design templates which are especially designed in order to make unique ppt presentations. So you have a lot of options of choosing the perfect template of your choice. Also there are numerous topics which have lots of PowerPoint templates to choose from.
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.