ID request for two orchids please

[Viperalus]

Hello,

Today I bought three orchids. One of them is a Berry Oda, it's fine with that.

In another of them I can guess the name I have found to be for the plant, but I need a confirmation.

On the label is written: Miltassia Peggy and it is the following orchid:


After a search I found that it might be the Miltassia 'Peggy Ruth Carpenter' or Beallara 'Peggy Ruth Carpenter'. I have seen the same flower under these two names. I guess the genus must have changed from Miltassia to Beallara, am I guessing correct?


The third orchid is the one I couldn't find ANY information at all.

At the label it was written: Oncidium Von Holm and it's the following orchid:



I have also found a forum topic elsewhere with the same problem and the guy there had bought it from the same seller as me but for some reason there is a problem with registrations there.

Do you have any idea??