How much processing did you put in these?
1- colours seem a bit too vibrant, so if there is no processing, then cool. Not sure what I am looking at though. I dont know much of flowers, so this might be obvious to others, but to me, if it wasnt for the other flowers in the series, I wouldnt know this was one. Watch for those petals that get cut off
2- Nice clear shot here, but I feel that the elements in the background distract a bit. Maybe move in closer to your subject to help eliminate that tree in the upper right, or get down even lower to the ground if you could and aim up. The subject is a bit too centered and too far in the frame for my taste
3- Composition is off... the bottom of the flower is cut, the leaves on the right are distracting and the main flower doesnt seem to be in focus
4- Totally missed the focus here. I'm also not liking the subject matter