The image is called "WhatsApp StickerTool 1.0."
The sticker maker allows you to make a background and add flourishes.
The image is from the messaging service.
You can use the custom Sticker Maker on the web version of the messaging service to make your own stickers. Click the paperclip icon, select Sticker, and then pick an image to upload. The feature is coming to the desktop apps in the next week.
Images can be edited to make them the perfect sticker. An outline can be drawn around a picture to cut out the background, and images can also be cut out. You can add text, chat, and other stickers on top of your sticker creations.
There are a lot of third-party apps that can be used to make your own stickers on WhatsApp. It is a convenient feature to have built into the service's desktop and web versions, since they allow you to use a mouse to modify images.
