Hi Sid,
I like your image, the flower has good details and very plesant colors. I would crop just a little from the top to get rid of the diagonal light gray line on the top right side of the frame; or clone it out without cropping. I would in additionto, crop just a tad from the bottom to give more attention to your flower...:cool:
I like how you have caught the different light affects on the petals. Agree with Gus on cropping or cloning at the top right to get rid of the gray line, it is a little distracting.
love the way the inside of the flower glows!! do agree about getting rid of the streak at the top. might would try to tone down the hotter light streaks on the red petals. great job. can you give us an update on that lens?