i would fix it since it isn't a big deal to rip out the stitches and fix it now.

I had to look at the pictures for 10 minutes to figure out what was wrong...now do you think that your son or anyone else is going to find that exact spot in the quilt and say to you..."aha,you made a mistake". No, they are not!!!!! They are going to be looking at the whole quilt and say "WOW, what a beautiful quilt!!!" Call it your Amish mistake and move on....only God is perfect. From what I see, it IS a beautiful quilt...sit back and admire what you created....a work of art!!!!!!

I scanned all 5 pages here, hoping you had posted a pic of the entire quilt top. I'd hang it up on the design wall and stand across the room. If the mistake is noticeable, I'd rip it out and fix it!

kid won't care, you have learned, I'd just go on to the next one!!

I cant even tell if there is a mistake.

Depends on how much it bugs you. If it is going to bug you every time you see it, re-do it. Otherwise, I think it is fine the way it is!

I would have to take it apart. If I know it's there it will never go away--I'm speaking from experience!

If it's going to drive you nuts, fix it. I personally wouldn't bother cause it took me quite a while to actually see the problem. Your son is going to love his quilt no matter what. The colors are gorgeous!!

Chalk it up to "lesson learned" and start your next project.

I suspect that if you didn't mention it, everyone would assume that you did it on purpose. Many people will build in a a touch of asymmetry to be "artsy." As someone else said, take it out if it will really bother you but your six year old will not care. It's very pretty, by the way.

I sure can not see the mistake, but if it's going to bother you whenever you see it, then take it out.
You are the one that has to be happy with it. No one else.