Wow! That is incredible - wow. And the moreliana is just spectacular. Ive never come across this one before. Do you know if it's sold in the US? What a collection. Thanks for sharing.
The Miltonia are native to my region, it is very easy to grow them, even outdoors with no major concerns (the wall in question receives the shade of a vine in the summer, protecting the orchids of stronger sunlight). I think Andy's Orchids may have Miltonia moreliana (also called Miltonia spectabilis var. moreliana). A tip: Miltonia and Aspasia (as opposed to their "cousins" Miltoniopsis) do not like to be planted in pots, but only mounted.