Bruce,
here are my thoughts about your song:

1) I really like the fact that the tone on your guitar is such a good match for the tone of the backing tracks guitar. This makes your part fit contextually, as though you recorded the whole song with the same guitar

2) yeah, ditch the count-in

3) The sheer abundance of instrumental blues makes it hard to present such a song in a way that stands out. Usually instrumental blues come across as a mindless jam that got thrown together in one take and without any planning. (My subjective opinion) The addition of lyrics would have made it more like a composition and less like a jam.

4) nice blues licks!