I didn't know this song, but I liked your rendition: very soothing in your typical way, which is whispering more than shouting.
Now, for a bit of friendly and (hopefully) constructive criticism... personally I would mute the string pad in the background, because the song really doesn't need it. Instead, I would try to rise the level of the acoustic guitar and of the drums and see if the end result sounds more authentic (like the real thing) and less "arranger-ish" (read canned).
In the mind of the style programmer that string pad should provide a counterpoint to your melody, following your chord changes in a clever way... but in the reality it fails to do so and the end result is that, instead of being an embellishment of the song, it becomes a burden.
This criticism applies not only to Yamaha but to all the arrangers: whenever a style has a track with a string or a pad sound I either try to play different chord inversions and see if the end result becomes better, or just mute that track and try to compensate rising the volume of other tracks, or maybe playing (or overdubbing later if it's a recording) a string countermelody with my right hand.