Really beautiful lilies, Michael. I assume you remove the anthers in the last pic. (?)
I haven't had much luck with western North American lilies. But the journey is the fun part for me, and I keep trying. Just this past NARGS seed ex, in the second round there was still Lilium humboltii available, so I snatched some up. Such a special species, I thought it best to let people with a better chance get the seed first, and if there were leftovers, than I would grab them.
I have five seedlings now.....