Greetings Andy.  Its great that you have adapted the basic riffs of the song to your personal style.  Your tempo is steady here.  I would suggest that you lighten you touch on the guitar and add some dynamics to your playing.  For example, you can slightly lower the volume of your playing while you sing and the increase it a little for insrumental breaks.  Remember to use your palm/heel of your hand to mute the strings while you play and I think you will see you have a little more control over the performance.  Thanks for posting.

Thanks a lot Corey! 

Thank you Andy for listening.