Here are some critiques upon first listening. First, some things that you do well (IMO):
1)
Use of space: This was nice. You're creating one phrase, leaving some breathing room, and playing another. This helps the listener digest what you're playing and tells a better story.
2)
Chord tones: I heard you play to the iv chord change nicely, so you're obviously aware of the harmony and are tailoring your phrases for each chord.
3)
Tone: The tone overall was nice. I think it will be even sweeter with a more controlled vibrato (see below)
And then here are some weak areas IMO:
1)
Vibrato: I think you need to spend some time really working on it. Right now, it sounds very nervous and uncontrolled. It sounds more like a nervous twitching than a controlled vibrato. IMHO, you should watch the masters of it (Hendrix, Stevie Ray, Clapton) and study the mechanics of what they're doing. They use different motions (Stevie and Hendrix are pretty close, but Clapton is a totally different motion). Really
listen to it. Now .... if you really love the sound of your vibrato the way it is, then forget everything I just said!
2)
Timing: You have a tendency to rush a good bit. This is, of course, extremely common. I know that this is a slow 12/8 blues and so some phrases will be played in a rubato fashion, but I'm talking about the phrases in which you are locking into the beat. The phrases at 0:14 and 1:13 are prime examples. The rhythms you're playing are clear, but they're just really rushed compared to the backing track. This is just something that takes vigilance. You need to record yourself practicing to a metronome or a backing track (played to a click) and then listen critically.
3)
Motivic or Thematic Development: This can help ground the listener. Instead of just playing one phrase after another, it's nice to play a theme and develop it a bit before moving on to something else. In other words, you might play something like A - C - D - E, then A - C - D - D, then A - C - D - E again, and then A - C - D - E - G, and then move on to another idea. When you do this, it helps give the listener a sense of anticipation because they gain a bit of familiarity with what you're doing. You can't have a sense of anticipation if
everything is unfamiliar. And it's hard to build and release tension if there's no anticipation. So get them used to an idea by playing around with it and varying it before launching into another idea.
Of course, there are always exceptions in music, and I'm sure you wouldn't have any problems finding exceptions to much of what I've said, so take it for what it's worth. Good luck!
) books etc can be helpful to open your eyes to new things and to get new ideas...