How do I set up “about” widget?

Go to appearance > widget > SPARROW About

PS: You have to use a minimum of 600px wide image

PS2: Once you upload your image to the media library, a link is automatically generated. So to compile your “about section”, go to Media> Library> Select and open the image, the link is at the top-right of the image, copy it and enter it in the widget About section “Image Url”.