An image that clearly showcases the topic: you want to get people who actually want info about that topic or product. Make sure the image isn’t too vague that it captures the attention of the wrong audience. You want people looking for invite tips to see an INVITE vs. just a bride.
Keywords: forever necessary so including relevant topics is a great way to get them in the graphic, BUT don’t do what I did and make it tiny calligraphy font- too hard to read on mobile (where most users pin from).
URL: don’t forget to include your URL- partially because we don’t want people to jack your graphics and partially because why not get that out there every chance you get!
Flat-lay image: good photography is key on this visual search engine, so make sure to use clear and pretty pics.