I would chop of the bud in the second picture right away and dry it, the ones in 3 4 5 and 6 seem like some could take a couple days, others could take week or week and ½, cool pictures dude.
If you can re-take that second photo but try to make it focus everywhere or just build the picture digitally from multiple well focused points on photoshop and then submit it to the macro contest. Its a real chance.