Indeed it's a yellow Phalaenopsis. Does it have branching spikes and flowers identical as the one in the picture below?
One of my yellow Phal's also had flowers that were more cup shape that in the picture above, but the flowers that opened later on, became as shown above.
BTW mine is Phal. Anthura Gold (traders name)
I don't see anything unusual about the leaves. Some phals have rounder leaves than others. Yours looks like a typical phal to me, and healthy looking too.
As for the blooms some phals have thick waxy blooms, other have thin flat blooms. It all depends on the parentage.
__________________ Camille
Completely orchid obsessed and loving every minute of it....