Bert, the really large Coelogyne in pic 11 is mossiae, and there were underneath that one some smaller plants of Unchained Melody. We thought they looked the same. Luckily the first morning of the show has the judges about doing their job. ( that's why the exhibits are not yet showing any exhibitor sign) So we asked one of the judges how to tell the difference between mossiae and Unchained Melody. He admitted after some hmmm and hmmm, he had a hard time with that too. He actually grew up in the region where mossiae grows and he still couldn't really keep them apart. Fascinating!!
edited to add - Ted, I could imagine it is perhaps a combination of good growing and natural blooming cycles and some light/temp manipulation with others.