I think I've got it, thanks to you guys.

Well, I've SOMEWHAT got it, as it seems there are one dendrobium that isn't supposed to be there - we ordered 5 dendrobiums, and in total, labeled and unlabeled, there are 6. Hmm, strange. Also, the Den. Wardianum turned out to be among the labeled ones.
Anyway, I think it's like this (going by the picture with all of them on it):
1) Dendrobium Tortile
2) Encyclia Cochleatum
3) Dendrobium Victoria-reginae
4) NoID "surprise" Dendrobium
Thank you all - I'd love to hear people's opinions.