I built for myself a pin hole camera over the weekend. This is the first shot I've taken with it. For anybody that might know a little bit about them could you please tell me
1- Are the settings on my camera correct for such a shot.
2- Advise on how to get a more sharper image
3- Advise on any good web sites about the subject.
Please note i set the noise reduction on the camera, and focused the camera manually with a trial card to the back of the pin hole box. The exposure time about 16 min.

Camera: Canon EOS 400D Digital
Exposure: 905 sec (905)
Aperture: f/5
Focal Length: 24 mm
ISO Speed: 400
Exposure Bias: 0/3 EV
Flash: Flash did not fire
Orientation: Horizontal (normal)
X-Resolution: 72 dpi
Y-Resolution: 72 dpi
Software: Digital Photo Professional
Date and Time: 2008:07:07 18:28:36
YCbCr Positioning: Centered
Exposure Program: Manual
Date and Time (Original): 2008:07:07 15:30:09
Date and Time (Digitized): 2008:07:07 15:30:09
Shutter Speed: -2147483648/1
Color Space: sRGB
Focal Plane X-Resolution: 4433.295 dpi
Focal Plane Y-Resolution: 4453.608 dpi
Exposure Mode: Manual
White Balance: Manual
Compression: JPEG
XMP Date and Time (Original): 2008-07-07T15:30:09+10:00