To be brutally frank, this image looks like one where you've done all of the things that the text books recommend against; that is: You've shot in harsh, overhead light, the subject is pretty much cenetered in the composition and there are a lot of distracting background elements visible all around the perimeter.
Flower shots are actually quite difficult to make really appealing; have a look at TPF member Old Hippy for some ideas what makes a really stand-out flower image. Ways to improve: Shoot earlier in the day or later in the evening when the sun is lower in the sky and giving a more attractive light. Consider using a polarizing filter to enhance the richness of the colours. Place the main subject off-centre in the composition, and crop more tightly to eliminate as much of the [comparatively] unattractive background material as possible.