For what it's worth I think your design looks amazing, I wouldn't change it. I don't think lower hairlines look great. Also I really liked your hair when it was short, probably more so than when its longer. I think it emphasises the hairline and goes well with your face / bone structure.
things will never be perfect, no matter how many you do you'll always find something. If you've got the time and money it's not really an issue though I suppose. I thought the 2nd pass moved it 1.5mm over to make it more symmetrical?
I haven't shown my face on here but I think my hairline to eyebrow is 7cm but I'm OK with that, my eyebrow to nose and nose to chin is 7cm too so I think I've just got a longer face, the harmony is more important. And not wasting grafts and money for the future. But I'm only early 30s and not made of money yet.