I'm actually not a huge fan of the way this genre bend was handled, in terms of there is not a lot of open space for the male vocalist to shine -- the mix is loud, heavy, and has a lot of other instruments in the vocalist's range. The piece as a whole other than that is fully listenable and enjoyable. I actually think you've written a nice bassline, the kind I myself am inclined to write.

I think if there were more contrast in terms of volume between sections, as well as instrumentation and range of the vocalist (i.e. higher octave) this piece would come out so much the better for it.