No, I don't think so. She wants it to be pronounced TAY-a. Teia looks like
Leia which is commonly pronounced LAY-ah. Taya looks like
Maya which is pronounced MY-ah or MAH-ya. So Teia wouldn't be mispronounced as often. Apart from that it looks legit, like a slight variant of
Theia which has a great meaning, whereas Taya looks made up. I don't have anything against Taya but prefer Teia.