Because this filename is a standard format generated by (indicating the photo was saved on July 18, 2019), it is a private file stored on an individual's device or cloud account. There is no public "article" or global link to download this specific image unless it was uploaded to a public file-sharing site.
: On Android, look in Internal Storage > WhatsApp > Media > WhatsApp Images .
: Search your photo library for the date July 18, 2019 .
