My favorite style of the knives you build. Like Lin says, you should definitely keep it in your line. I personally prefer shorter blades, so something with a cutting edge that is 3 to 3 1/2 inches long would be more what I would like as a typical field blade, but the knife you have built would do just about anything I would want. I too would find a tapered tang more appealing. The micarta and G-10 are a good combination and are well done. 5160 is one of my favorite steels, with 52100 rating a little higher in that group. This is a very nice knife and one you should be proud to show. The sheath is well executed too.
Allan