That would be Epidendrum, Epiphronitis is a hybrid of Epi radicans and a Brazilian species. Another possibility for #3 is Oestedella (related to Epidendrum) wallisii - the lip reminds me of that species, but it is very heavily spotted for that species.

Epiphronitis is an intergeneric hybrid (Epidendrum x Sophronitis). the most common one is Ephr. Veitchii (Epi. radicans x Soph. coccinea).

I don't think the flower shape is right for Oerstedella. after looking over it again, I think it's more likely that it's an Encyclia (expansa? maderoi?)

Pitter,

Photo nunber 3 appears very close to Anacheilium tigrinum, which is a species found in Colombia. Anyway that's what your photo compared to the one on IOSPE seems, to me, closest to.

And photo number 8 is definitely not a Polycycnis, but looks very suspiciously like the growth and bloom habit of a Xylobium species, perhaps Xyl. leontoglossum, or maybe a color variation of a different Xylobium species.

HTH

Paul M.
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#1 Maxillaria longissima
#2 Lockhartia spec.
#3 Anacheilium (vespa?)
#4 Epidendrum radicans/secundum/ibaguense alliance
#5 Prosthechea spec.
#6 Oncidium spec.
#7 Gongora spec.
#8 Xylobium spec. Xylobium leontoglossum is very tall, flower stem is normally hold upright.