hmmm i didnt notice the letters by the strings but it's good you fixed it anyway :)
the problem with blues is that it's hard to do something original, and to stay in the frame of the blues without advancing to rock,that's maybe because of the scales problem in blues, i mean you can use lots of scales but most of the blues guys use only blues and pentatonic scales
i'm sure that people like SRV never heard about modes in their whole life