This must be very hard work! I've inspired by your work and made a miniature orchid myself. Even though it was not an origami orchid (just glued the pieces of paper), it was soo hard to do and when finally finished, it was not even close to the tinyness of yours.
It took a couple hours to fold and put it all together. The vials I'm looking into to use for necklaces with the orchids have a narrow neck, so I may have to assemble it inside, which will unfortunately take even longer >.>