Mom randomly bought me orchids at a supermarket

[Kittyfrex]

So, they were cheap, and petty. But considering one of them came in a decorative packaging saying Dendrobium, I am hard pressed to belive any of them.
The first two pictures are of a plant labeled "Brassia", and i do belive it very likely is a hybrid of it just on the shape of the flower.
The pink one supposedly looks more red, something the phone can't seem to capture. The third one is, according to my mother, is more brownish than red, but the yellow is close on.
After digging somewhat, i'm led to belive the pink one is a miltoniopsis and the bicolor one to be miltonia.

That said, the only experience i have with either is breaching the world record for killing two miltoniopsis in record time (believed it was some random onc, never looked t the print on the pot). And considering all i heard was that miltoniopsis is a beast to take care of, i'd like to be prepared.

Thanks in advance