There are 11 species of Grammatophyllums and I think the dark colored one in your photos is Gram. speciosum, famous for being the largest orchid in the world. They claim there are some with 8 foot pseudobulbs. That is even too big for the OC! I'm not sure what the name of the green one is but it has all of the markings of a Grammatophyllum. Mine is the Gram. scriptum and here is a picture to compare:
It seems like a while since anyone has posted a big floofy Catt. so here is Blc Paradise Jewel 'Flare'. It started to open yesterday.
Also, Bollopetalum Midnight Blue 'Cardinal's Roost' is fully open:
Jim
"Advertising may be described as the science of arresting the human intelligence long enough to get money from it." -- Steven Leacock