Orchids are such strange plants that they are almost irresistibly photogenic.
As far as I can tell, this is a Mantis Orchid - Caladenua tentacular - but given the ability of these types of plants to interbreed and hybridise it could be anything.
This plant was growing at Heatherlie Quarry, one of my favourite orchid watching locations in the Grampians.
You can find more macro shots at Macro Monday2 and I Heart Macro. SM