as for 1, it is really hard to look at because of how much the picture is blurred. and the flower that is in focus blends in to the background so much you really have to strain to see it. i would try to get a different angle next time. the colors are great and vibrant though.
2 is better, but the blurry pink blob of flowers in front makes it a distracting. again, i would try a different angle or get all of the flowers in focus including the white one in the back.
3 is good and the lighting and colors are nice. it just really doesnt stand out in any way that makes it unique
just my opinion though, hope this helps you a little