It is difficult to say what the issue is behind your right ear. You should schedule a followup now with your otoplasty surgeon. It sounds like you're happy with the external look of both ears which is great. However, you should have your surgeon take a look at the issue behind your right ear. They might very well just follow this over time and further healing but you deserve that reassurance. I hope this information is helpful for you.
Stephen Weber MD, FACS
Denver Facial Plastic Surgeon