All I know about guitar work is whether I like it or not. . . and I liked this.
As far as the music, one thing I've got a lot of experience at is adding lyrics/vocal treatments to existing instrumentals. I flatter myself to think I've got a real good ear for what will (and will not) take a lyric.
This work of yours is soooooooo close to being spectacular. . . but it is lacking any real way to structure the lyric/song to verse, chorus, and bridge.
It is a wonderful musical idea, but not yet a song (in my opinion.)
What I would suggest is that you forget worrying whether the idea is good. . . I'm absolutely sure it IS good. Focus your attention on either writing some lyrics OR finding a lyrical collaborator, then fitting this excellent musical idea to the lyric in a way that creates drama and "fit" with the lyric.
The individual components of musical ideas are all there. . . but need to be (again in my opinion) combined into a more structured format. If I were to add a lyric to this. . . I'd cut and paste from parts of it. . . and would not leave the current sequence alone. I'd use every element, because I think every element of it is wonderful. . .