The voice sounds the way it does because of the microphones used. In the hands of someone who knows what they are doing, the positive qualities can be emphasized, and the negative can be eliminated (to some extent). As with anything, the more you do it, the better you get.
However, there is one thing I personally think you can improve on, and that is your chord. Aside from Creep by radiohead and a few other songs, most songs with the same chord progression over and over are boring. The difference between your stuff and radiohead's is that radiohead has more band members who can compensate for an unchanging chord progression. Either way, with enough exposure I'm sure you would have fans. Try to weed out your bad habits and improve on your good ones.
Good luck!
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