Image critiques are an excellent way to rapidly improve any photographers ability to create beautiful images.

You can help those offering image critiques by listing details of the capture process.
Some of the details that can help you receive the best critique possible are:

Thought Process
Were you creating a Portrait?
An Environmental Image etc.
What obstacles did you face in creating your image?
Location
If an animal, species.
Time of day.

Capture
Camera
Lens
ISO
Metering Mode
Exposure Mode
Exposure Compensation (if used)
Shutter Speed
Aperture
AF/MF Mode
Tripod
Tripod Head
Flash
Flash Settings

Post Processing
Crop
USM
Levels etc.

You don't need to list all of the above(it would be the most helpful) but list as much as you can and any other factors that had an affect on the final image.

Thanks James