weeks - 3:19 pm on Oct 5, 2010 (gmt 0)
It's obvious you have a lot of respect for this person's ability as well as their feelings. And it's clear you realize you're not perfect either. You say it well here. Why not send this person a link to this post?
I would add this: How much work would it take to fix these problems? How much time? You both are in business, ya know, not creating a work of art for all time.
So, with that said, consider which issues that need to be addressed. (Line indentations? Gimme a break.)