Russ,
Yeah I listened. Nothing wrong with the song. Looks like you figured out how to combine two of your favorite things with the video. That's always fun.

As far as your singing; it's just like any other skill set. If you don't use it regularly it takes some work to get back to where you were. I had that experience recently when I let my bass sit in its case for a couple years.
It took a good hour before we felt like friends again.
It wasn't bad, but it wasn't your best singing I've heard. I'm guessing you just haven't been practicing much lately.

I do not work here, but the benefits are still awesome
Make your sound your own!