I like the space in your guitar playing. But your vocals even tho they have a nice timbre sound like you are pushing too low and your notes waver around uncertainly. You should think about getting some lessons so you can learn ways to release the potential of your instrument. I don't think it will take a lot.
If your not super precious about the keys you play in on the guitar, you can always capo up to make the singing pop more. In the din of a bar or club, really low stuff can get lost.
Agreed, but I also agree with the vocal coach. It can't hurt. I used to have a pretty good range til I ****ed it all up singing incorrectly and out of my register. I wish I'd gone to a coach.