It is very nice, and I fully understand your desire to name them - even as numbered NoIDs. I do the same with my phals, and then try and give them a Kerry name related to the circumstances in which I got them, or what they remind me of.
I wonder if the petal notch is a mutation that occured as the spike was first developing and subsequently affected all the flowers of that spike. It would be interesting to see if it reflowers with the same notch next year.
I do like cymbidiums, but I am really don't have the space for them. Such a shame as the nearest Orchid nursery to me, in East Sussex, is a well known cymbidium breeder. aaah well, maybe when I have won the lottery, bought my dream house and got my greenhouse and veranda etc etc etc....
I shall just admire yours from afar!