Doritis again

This is the whole plant - Doritis pulcherrima!
The flowers don't all open at once unfortunately.
And wow, it is tough to get a sharp photo of this orchid - white again! What a problem. I should try it with a black background?
The flowers are very pretty, about 1.3 cm across. The yellow is kind of like egg yolk - but from a caged chicken, not a free range one!