I think you are a very accomplished player. I think this could be the basis for a good song. I think I admire your level of skill (bows and scrapes). Taking this and making a great song is a huge leap. Unfortunately, being a great player is very undervalued - a catchy tune, pretty face and modern production wins all the time. As the great guitarist, song writer and producer Chet Atkins famously said - "There is no money above the 5th fret". What he was trying to say is that guitar virtuosity will not make you money but writing great 3 chord songs based on the open chords just might! Ask Bob Dylan or Neil Young.
M