Hi,

First, the EXIF data is still in your image, so you can read it to find out the specifics. In this case, here is a small snippit from the EXIF with your exact exposure:

Quote:


# Exposure Time (1 / Shutter Speed) = 1/400 second = 0.0025 second
# Lens F-Number/F-Stop = 28/5 = F5.6




I think your clock is set wrong on the camera as it lists this as taken at 11:01 PM.

A lot of folks in the macro / flora world don't like totally dark backgrounds, but I really prefer them, so that's a plus for me on this one.

Composition wise, I don't usually like to clip the ends of petals or anything else at the edge of a frame, but that is really a matter of personal choice. So, I like the flower coming from the lower left corner, but would prefer more space all around the other three edges.

Some of the whites are considerably brighter than other areas of white. The are not, however, completely blown out so you can easily tone down the exposure in those areas using a multiplying layer and a quick mask, especially if you shot RAW. (let me know if you would like more details)

Hope this helps.
Jim