Welcome to my club! I just posted about my own "how in the world did I do this" quilt! The top has mistakes and the back is crooked. And I did post pictures! Good news is that these board members were completely reassuring and kind about it, which made me feel better.
My advice is to do what you've already decided: Give it to him, forget the mistakes you made, and move on to the next one. And you're right, he won't care or notice the things you know are wrong about it.