I can't comment on your album or on the musicians you've named, but Bluegrass is certainly worthy of a thread in a jazz board, since bluegrass and jazz share some characteristics.
The most important thing I know about the music is that in the 1970s, after years of changing only incrementally, bluegrass developed an avante garde (Tony Trischka, David Grisman, Tony Rice, Bela Fleck, Mark O'Connor, and others). The second most important thing I know is that Django Reinhardt and the Hot Club of France had a substantial impact on many bluegrass musicians, and that these musicians, unlike the slavish devotees of Reinhardt who identify themselves as "gypsy jazz" musicians, used Reinhardt and Grappely as a starting point, not an ending point.