Stanhopea tigrina and S. t. var. nigroviolacea

[Kostas]

Hello,

I saw Stanhopea tigrina in a video a few days ago and found what is the next orchid in my to get list I really liked it a lot. Reading more about this species,i read that Stanhopea tigrina var. nigroviolacea is a variety with darker and bigger flowers but i have been unable to find the exact differences of these two subspecies. So,i would like to ask you what exactly differentiates these two(both in plant looks/needs,etc and flower)and which one is the best looking in your opinion along with why. So far i havent been able to conclude because i havent seen equally good photos of both and dont know(and cant tell) their size difference.

Can both subspecies have the light colored part of their flowers yellow instead of plain creme i see in some photos? Many S. tigrina i see have it yellowish but few S. t. var. nigroviolacea i saw have that part yellowish in color.

Thank you very much in advance!