A big gold star for originallity, it looks like some exotic burlwood. It doesn't have to resemble anything but a willingness to do a unique process to not look like all the other sheep! Salute bro, it looks super! ~sololobo~
If I thought I'd get the results you got, I would not have "just" a painted dash. Looks good---and it's original.
So it doesn't look EXACTLY like real wood to some. It's still a cool-***ed look! Nice job! I think I'm gonna have to try it on something.