That's a good looking metal base. Little tip, paint applied to metal usually has an undercoat to go with it, try copying the paint layer/area, pasting underneath it, expanding it by a couple pixels (in photoshop, just use select > expand, then fill the selection), and then dropping the brightness & saturation down by a smidgen.
And try getting that paint to pop up a tad by adding it to the normal map. Paint, especially chipped paint, isn't perfectly flesh with the metal.
You're drawings look good as well, I like that little hatchet.