Why has my anti helix concaved after otoplasty?

Thanks for posting your question and your photos. I am sorry to read of your concern. Likely, the ear will come forward. It has only been 5 weeks. Only your surgeon can give you true reassurance, because only your surgeon knows what exactly was done. Taking a step backwards from your concern, I would share with you that when people have otoplasty, they are at risk of becoming overly obsessed with each fine detail of the ear and can miss the global improvement. I would stop thinking about fixes or revisions. I would try hard to focus on the other wonderful aspects of your life. Give yourself time to heal.