I really don't know what to say. It's a sad image - with the petals falling off as we speak. But there's not much blue and quite a few technical flaws.
Seems your are experimenting in some way there and that´s a good thing. On the other hand I think your experiment have gained you a rather negative result. The flower (or is it not?) are very unsharp and not very exciting visually. The background has some bluish eliments but is very noise and (sorry for saying it) ugly. Also think the image needs thigter corping, expecially from below.
Though I understand the intent of the shot (a falling petal), the noise and the lack of blue hurt this submission in my opinion. Another suggestion is to not center your main subject so much (rule of thirds).
I am very new at photography, but I think I've read that a lower ISO setting would help reduce noise in the background. The petal dropping was a great idea.
This photo is too noisy and doesn't clearly demonstrate the color blue IMO. It would have been better vertical and in sharp focus. This one wont score high, bottom 20 I think, sorry.
Really needs a lot of work. Theres a huge amount of noise in the picture, its not in focus, theres a strange wite edge of a vase poking into the image, which needs to be either in or out. The composition is attrocious. Where's the blue connection ?