Keep in mind that Hera was actually the only married woman among the Olympians, for Aphrodite's 'marriage' to Hephaestus can hardly be called legitimate, because it was an arranged marriage with no commitment or loyalty.
In appearance, Hera is usually represented as a majestic woman of mature age, with a beautiful forehead, large and widely opened eyes, and with a grave and stern expression that commands reverence. Her hair was adorned with a crown or a diadem, with a veil frequently hanging down the back of her head, to characterize her as the bride of Zeus.
Her animal is the cow, the most motherly of animals, but not wanting to be thought of as plain-looking, she also adopted the lion as her symbol, and the peacock and the cuckoo as her birds.
Her other attributes are the veil, the diadem and the scepter. As a former Death-goddess, Hera was also shown holding a pomegranate. On Olympus, Hera had her very own messenger - the fleet-footed Iris, goddess of the rainbow.