Wow, amazing photos. That second to last one is incredible. It looks like its trying to mimic a wasp. If you get no help here, try the yahoo group:clubBulbo : clubBulbo
Some knowledgeable folk there that can help you.
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"We must not look at goblin men,
We must not buy their fruits:
Who knows upon what soil they fed
Their hungry thirsty roots?"
Can't help with ID's but I think Tindo is right about the second to last one. I've heard that some orchids do that so that insects try and mate with the flower and carry away the polinia in the process.