Ron,
Using a FreePlay Style for this was a brilliant move! As you said, there are no Styles for some tunes, and this is one of them. Your version of this has some really lovely harmonies, and you get a richness from using a FreePlay Style that you wouldn't otherwise have had.
The piano sound you were using really intrigued me, as I could identify lower notes played to the left coming
from the left; and higher notes played to the right coming from the right. Listening, it was like sitting and playing a real piano. I gather you achieved this very subtle 'stereo' effect by having two pianos selected, one in R1 and one in R2.
Those strings sounded lovely too and made such a contrast to the piano sound you had just before.
As you said, this piece was sung by Aled Jones for an animated film called 'The Snowman'. That in itself was a brilliant bit of artistry, and if you haven't watched it before then click on the below. Watch it Full Screen to get the best effect.
The Snowman - Walking In The AirHugh