You can now suggest two more edits on artwork and place markers directly from the website:
Description – Use the rich text editor to write or update a description for an artwork or place. You can add bold, italic, links, bullet lists, and more.
Creation date – For artworks, you can now also suggest the date the piece was created.
These options join the existing suggest-edit fields like title, artists, tags, and city.
You can see the review queue here: Review queue - Street Art Cities. Admins and country managers also are able to accept/decline items in the queue, so it could be that by the time you get there, the items are already processed.