just did a little bit of work within a very basic image editing program that I have
this I think would appear to be a bit closer to the real knife although I'm not sure that the satin finish might not be totally accurate.
good images are a product of a number of things.
Type and Quality and Direction of light
Background material selection
Physical devices such as the camera and its functions, tripod, light stand etc
email me if you want help
meanwhile, I'll include one of Ricardo's mentors knife and an image I just did a few moments ago and was going to post in a new thread but it fits here quite well.
This knife I have show before but not with this background--by DF Kressler
only 2 clicks in the image image editor. one to adjust contrast and brightness slightly from the camera image and one to reduce the image size.
take a look at the knife collection photos in the Photos below and see other knife images.