I want to repeat, I am not an expert...but I do understand some...
I do not see what others see in these shots. Flowers have been shot a gazillion times. Creativity, lighting and composition seem to be missing to me. Or at least they are not much different than can be found on a lot of different pages.
Try to get more creative, such as angle, time of day. Shoot from an angle(s) you are uncomfortable from. Experiment.
I can only tell you that I have shot similar shots this past week and I am very disappointed in my results. I am trying and have not succeeded in producing something just a little different.
Remember, this is just my opinion, I am not trying to ruin your day.