Beautiful work there Paul. Like Bigrich, I go hunting the fields near my home here in the U.S. I'm not an archeologist, or even a former one like him. I just do it for the shear joy of finding something that a man made long, long ago, to feed and put clothing on his family and fellow members of his tribe.
I've been going out and hunting these tools for years, and I agree with Bigrich, these rate right up there with the pieces that I find in the fields. There were a great many camps and settlements near my home.
I have a friend that also goes hunting them, and because he is self-employed, he gets to go hunt them a lot more than I do, and gets to travel further afield across the state. He is a close friend of the curator at our local Museum of Natural History, and often takes his better finds to show him. One particular find that was the sort of "Crown Jewel" of his collection, was an axe that was knapped and flaked from a very large piece of your country's own black flint. It was about 8 inches in length, about 5 inches at the wide end, and tapered down to a point at the opposite. It was also knapped and flaked to where the middle was about 3 inches thick, and tapered down to beautiful wedge shapes at both ends.
He really was lucky to find it, because he hadn't found anything all day, and was just about to give up and return home when he spotted it. The real luck, was the fact that it was in that field for so many years, and had never been hit by a farmers plow, and damaged like so many of the pieces that we find. It truely was a museum quality piece, and as a matter of fact, his friend tried to purchase it from him for the museum's display of local, Native American artifacts. He even went so far as to telling him to "name his price, and he would gladly pay it". Of course he didn't sell it, but it was amazing to hear the curator say that.
I really like your knife with the Rainbow Obsidian, and the opal points are really nice. But be very, very, very, careful with them. Opal is a very curious type of stone. I have studied geology when I was younger, and know of a couple of folks that had opal as their birthstones. They had some real nice pieces of jewlery with opals set in them. It fractures readily, almost TOO readily in some cases, and the piece, if hit just right, and in the right spot.......will explode and disintigrate to a pile of chips and dust.
All your pieces are beautiful. Keep up the great work, and if you get the chance to do it, pass the knowledge on to the next generations so that it won't become a lost art.