SO i just did my first mount the other day. I moutend a Phal.Sogo Yukidian 'V3'. And a few pices of Dendrobium
loddigesii. They are both mounted on pecies of cork.
I have mounted several Phals, and they seem to love it, I think hanging them down is more their natural state and keeps the water out of the crown.
Yours look real nice.