The mystery orchid in your pics is:
Zygoneria "Adelaide Meadows."
It's a combination of five different species of Zygopetalum with Neogardneria murraya. Some clones have sepals/petals that are completely green, and others have lips that near blue in color. I used to have one just like it. Very nice plant; It grew very quickly and put out more than one new lead each time it grew. It was a little shy about flowering, and the leaves spotted slightly, but it was still a very rewarding plant. It had a spicy citrusy fragrance at night, and in the day it had a fresh narcissus/hyacinth scent.
Unfortunately, mine died of black rot. I miss it very much, and I want to buy a new one as soon as possible. It was one of my favorite orchids.