Regardless of orchid or lily, I like these, especially the last one. I'm not crazy about the angle you got on 2 & 3, actually I'm not sure if its the angle of the flower or the tight crop that doesn't work. The first one is okay, but I think it could have been better with more room to the left side.
Of the second set I like 1,4 & 5 all have nice lighting and angles. #2 is really dark and you cut the top edge off the one flower. With #3 the frontal angle doesn't feel right to me for some reason; I think its because it tends to make the lily seem less delicate. In #6 the angle doesn't work for that particular bloom. Just my opinion