Pros: The grip has a nice camo to it.
Cons: The random blotches of white that you put on it. They don't look like scratches at all. And you put too many "scratches" on it.
Improvements: Lessen the scratches. Try engraving the scratches. Or make a whole new metallic base using different filters. I believe there is a tutorial in the CSS section about defining materials.
Notes: Good try, but you just overdid the "scratches." It seems like a grey machete with lighter grey lines all over it. Keeping going at it and you'll get better. But as I said, looking in the tutorials section for making scratches and metallic bases.