Nice barrels Stallones.
Regarding your photography....
Camera settings really aren't the culprit, although I will always campaign for better knowledge of tools.
Your images are suffering from three things that are all easily fixable. 1) Insufficient depth of field (area of focus) As you can see in your third pic, the left side is less in focus than the right. This is controlled by the aperture. The larger the numeric value, the more depth of field. The more depth of field, the result is a requirement of slower shutter speed...which results in #2. 2) Camera movement. Brightler light will allow for a faster shutter speed that you can hand hold if you don't want to invest in a tripod. 3) Soft lighting....does not lend itself to good definition. Because, the light source is must be larger in order to be softer. Think about the realitive size of the sun and the harshness. Then think about the realitive size of a cloud that softens/diffuses the sunlight. The negative effect is called specular highlights. That's why the image link below, at the front of the receiver, it looks white. It is not white, but a large specular highlight caused by a large diffused light source. Point source lighting will create better definition, at a cost, which is untolerable (small) glare if not handled properly. One tip is to place the object at a 45 degree angle to the light source. Try some pictures outdoors with full sun. Best part of digital imaging is the lack of cost experimenting. Also, just like in pool, angle of incidence equals angle of reflection, unless you put a little English on it.

By
rpnkc, shot with
NIKON D1X at 2008-05-24