Nice image, 2 thoughts. 1. turn the blade so it gets a little more highlight to the edge. 2. place the tip of the blade on the border of the photo, so it looks like the blade is cutting the border. nice effort.
There is a lot of digital noise in this picture. It may be the camera setting or the way you downloaded it. Also the white on the right and bottom is distratcting to the picture. Again, maybe it was the downoad procedure. also some cameras do better close ups than others. I like the idea tho. Keep trying
the photo seems a bit out of focus (especially for such a "sharp" subject) and is either rusty or could use some white balance.. either way, the yellow tint isn't too attractive to me. interesting border.. i understand what you're trying to convey and i think it adds to the image for me.. but also think that some won't understand and you might lose some points for that.