Pic #2 is an Eria possibly Eria bambusifolia
Pic #3 is possibly a Diploplora sp (more pics of the plant would be appreciated if possible)
Pic #4 is Arundina graminifolia
Pic #5 is Spathoglottis pilcata
As for pic #1 I have no idea would you have a pic of whole plant & possibly a close up of the flower
Cheers Craig
