harlequin patterns are recessive traits I believe. However I think it is much more complex than the chi square
I see that only the first one is a true harlequin. The last one has a few spots
The second one looks a lot like what one should expect from leopard prince.
These guys can vary a lot....the have been hybridized and selfed and sibbling crossed so many times (sometimes we don't know what the parents are like anymore). I have had people ask me what they will expect from their seedlings and I just give suggestions of the best possible outcome if they are lucky, not that I am a phal expert at the moment. And they are way more complex than a slipper orchid
Buy a flask or compot if you really want a winning plant
Apparently two harlequins bred together will give more harlequin offspring. Other crosses with a harlequin just give a 25% chance

where is the member that breeds phals....? I haven't heard from him for a while