Congratulations!!
I think it's awesome you let mom incubate. I think far too often, the idea is perpetuated that the female cannot incubate her eggs, that something horrible will happen if you try it. We need more people who take the initiative and let nature take it's course. Sure there are valid reasons to artificially incubate, but there are also valid reasons to let mom incubate.
Very lovely clutch, you should be very proud.
Gale