Those look really nice, and the theory of composite guitars sounding good and sustaining well was proven (to me, anyway), when I bought a Switch brand,Innovo Custom, made of a material called "Vibracell". Switch guitars have never really caught on or became popular.
I hope the Flaxwood line does well, I like the idea of conserving timberland.
The resonator plate looks interesting as well. The hurdle I would anticipate them having to clear is the $2000-2200 USD price point. Many buyers will see that amount of money as a top of the line Strat or a LP studio or something.