Confirm Onc. Twinkle? Also, mystery Onc.

[NYCorchidman]

The first one might also be oncidium Tsiku Marguerite, which looks awful a lot like oncidium Twinkle, but they are about double the size.

The flowers look always identical as those of Twinkle.
White with very faint pink hue to it.
The fragrance is about the same as well. probably weaker.

The second one, I have no clue.
Can you post a picture showing the front side??
That will help others help you figure out what this is.