Paphiopedilum armeniacum x Cocoa Jollix Med is a cross between a yellow/green complex hybrid and the bright yellow species. This type of hybrid can produce some amazing, huge flowers. There is always variability, some with bigger petals, some with smaller petals. The best ones will be absolute show-stoppers.
These are easy to grow and have great vigor. Just treat them like other complex Paph hybrids.