I believe the last three are OK. The Dwf Red and The Orinocco look right. The Dwf Cav looks correct, and not colored enough for High Color Mini. I have a vague recollection that the HCM gets more color as it gets out of the juvenile phase, but don't quote me on that.

I have found that that splotchy red color is really variable and should probably be the last way to ID your plant.
That dwarf red looks right to me.
By the way, your plants look very healthy and beautiful!

seahorse

Thanks for the reassurance.

I intend to plant these in ground beds in the GH, so I needed to be pretty sure about the height of the mature plants.

SB

The Orinocco is the only tall one. Any greenhouse not big enough for the other three would have a very low ceiling.