I think that your very first design is the perfect one. Very nice lines. My vote is for that one. I was thinking of having three different designs, a "decent" sized Bowie, a mid sized like your first design and a smaller 2" Toad stabber. But then like Grumpy pointed out, the Bowie and the 2" will not be "practical". So, I'd say we should keep it simple and your first design is a perfect example. Maybe a thin fillet knife, perhaps. Sorry, no design. Maybe something like this one.
or this one
Just do a google search and get "inspired" by a simple design. I'd say, ask once more for designs, then freeze the thread, start another one asking for votes (orders) on each one.
Jonah's blacksmith will become a millionaire, what will all the orders pouring in.
I also like the "lazer" engraving idea.