First: I would crop out the flower on the left who's stem leads the eye right out of the photo. Also I think that if you are going chop off parts of the main subject, the flower, there should be minimal background. It seems to be not pin sharp. Did you use a tripod and cable release? Was the wind causing slight movement?
Second: The flowers look a bit overexposed/washed out and the same thing here: the vertical lines distract and dont contribute. I would crop them out.
To me a closely cropped subject works best with minimal or no background where the main subject fills the frame. I hope this is helpful, as its ment to be. I love flower shots and believe it is not as easy as it may seem to get a stunning one, simple as they may be.
Third: cute doggie
JSD