3* are sold with Luna not TE. Unless you are selling the LE ones that are really almost non existent such as the witches, you will never be able to sell those.
As for the 4*s, you can never sell the normal ones available from the pulls for more than 1 TE. As people also sell them for luna. Just max them out then sell them, better that way.
Your maxed Julia is so over priced. Go do a price check if you do not believe me or ask people. Have a nice day.