WOW! This is an amazing shot. The sky is just absolutely gorgeous, and the way you centered the flower draws the eye to the vividness of it. That way, you notice the background; the beautiful sky. The shiny, somewhat silky looking plants surrounding it also add to the effect. Even on the 'critiqueable' page, this picture stands out.
I had to give you a four star for vision, because quite a few pictures have had the meaning of summer behind them.
Three and a half star for originality, because I've seen SO MANY pictures like this, and the reason I didn't score lower is because this one still stands out upon all of them.
Five stars for technique, because a) I couldn't have taken a shot like this in my life, b) because of the colors, centering, and overall technique, and c) because it had a sense of...professional-ness about it.