I'm not talking about the statues. I think the statues were a mistake. I'm talking about in the episode Warriors of Kyoshi where they talk a little about Avatar Kyoshi. She was born 400 years ago, she wore Earth Kingdom clothing and lived in the Earth Kingdom. Then in the episode The Avatar State when Aang is talking to Roku, and we see the past Avatars, it goes in??backwards order, starting with Avatar Kyoshi (earth), then a waterbender, then an airbender, then a firebender. So Avatar Kyoshi was an earthbender.