This photo does not deserve a three and I think whoever gave it should really be ashamed or at least say why they gave it. There is a lot of bright light on the flower, but I really believe it adds to the photo, not takes away from it. The photo is crisp and clear and beautiful and I can't understand giving this photo a "3" and other blurry, and sometimes weird photos a "9". This is not a "3" photo in my total, total humle and amatuer opinion -- it is an 9, which is what I am going to give it. If there is a reason to rate it so low, please tell me why and I will tell you that you are wrong -- :-) just kidding.
Well I think it's worth more than the score you have. Good detail and exposure. A frontal shot IMO would have probably worked better here and I'd fill the frame more with the subject. Keep shooting!