Very nice - love the colors. In my experience, old papers work best. Don't know if it's just because of the age or if the chemistry was different.Sometimes, I give mine 10-20 seconds in VERY diluted developer. Say, 1:10. Like other aspects of Lumen prints, you never know what's going to happen, so scan first. The other possibility is treatment with Chromoskadasic chemicals. A little developer is required for that too, but it often enhances the colors. It's all experimentation, and you can lose a really nice Lumen print by trying to enhance it.