I like the aged look of the finish. s I look at the rifle I think I see an old rifle that had the metal/inlays cleaned up...
I think you might have some benefit from drawing more scrolls and the like. I think drawing the patterns helps the fingers to follow when carving. Do not doodle. Draw with purpose to improve; not to reinforce that which is not wanted.
I have to see the pattern and draw it to get it into my head before I can carve it. And I do not mean just drawing it out on the stock. My eraser can correct what my chisel has not taken off!
I also like to draw a pattern and leave it for a day or so before coming back to it check it out again.
Use french curves, templates or whatever to get your curves flowing and lines straight. We are all gifted with the ability to see a crooked line or a poor circle/curve. I have carved a piece and then taken a template back to it to check what my eyes are not picking up. A small change can make a big difference.
I really like the hunters star, too!
Thank you for sharing.
p.s. In some of the pics I had a heck of a time figuring out what you had done...THEN I realized it was snow flakes!