Man, great progress, you're an inspiration. Your chest look great, they've gotten big. Your deformity is no longer visible, it's completely gone.
Honestly I don't see any deformity at all in the later pictures, your chest looks full, big and muscular.
It seems to me like you're overthinking about your deformity. You did great and you're worrying too much about it, being self-conscious. At this point it's all in your head. Don't think about it.
Try to realize and grasp the fact that you don't have a deformity, you will feel much better believe me.
Keep up the great work!