Gary ... I finally had a chance to really listen to this, and since you asked, I offer the following: ... as it is in most cases, it comes down to what people like us are looking to do with a song - make it 'close' to the original, or 'make it our own' ...
That being said, - and I realize this is a 'quick recording' - I think the style you've chosen is fine, although the original was more 'simple' ... you might try just a simple '8beat' style, especially if your KB has an acoustic or unplugged style set ... I might also suggest listening to get the phrasing closer to the original ...
The addition of a bit of harmony would not hurt either, and when a song has a particular 'hook', like that electric bass line, I try to learn it and incorporate it into the song, and in this case, I might even use an electric guitar sound in the right hand played an octave or two lower ...

Here's the original: