* 	Background: Use an image of the sea as the background.
* 		Dog Close-up: In the center of the picture, depict a close-up of a dog's face, with its tongue out to indicate it's feeling hot.
* 		Text hint: Add concise text, such as "Prevent Heatstroke in Dogs", in one corner of the picture.
This design is very clear and straightforward, focusing mainly on the expression of the dog feeling hot. With the background and text, it conveys the message of preventing heatstroke in dogs clearly.