What did Hera look like?
Hera is a Greek goddess. No one knows what she looks like.
Many people have make sculptures and paintings of what they think she may look like but no one knows for sure. All of the goddesses were supposed to be very beautiful, though.
All images of the Greek goddess Hera were imagined by artists based on the verbal lore they were at the time familiar with. Her image then is different but identifiable by her symbols, as is the case with most gods and goddess of ancient times. There is no one imagine for everyone to identify as 'Hera'.