3 Flower Stalks and A Piece

[cjm3fl]

I need some help with these orchid "parts" that I got at the Green Thumb Festival in St Petersburg, this past weekend.
I have absolutely no idea where to look to try to locate my own ID for these guys.

1.) The 3 flower stalks are each a different color flowering orchid of the same kind of orchid.
Some potted ones, they had for sale, grew with very small leaves, compared to the thickness and length of the flower stalks.

2.) And this "piece" was a "throw-in" because of my other purchases.

I've included a picture of a fading bloom from one of the flower stalks, if that could help ID'ing them.


Help ID'ing is need AND what to do with them AND the needs/care of both varieties.
The can of Cutter mosquito repellent is for size referencing.

My Japanese is really rusty so I didn't understand what the stall owner was telling.

What kind of pot medium; soil?, wood and moss?, mount with some moss?

Any and all help will truly be appreciated!