Gary...Gary....Gary!!!
Great recording...I thought that was the best S950 recording I have heard on SZ..
A suggestion.... I never played this, but listening to your arrangement....I wanted to hear a passing tone, or build up chord progression in a couple spots..maybe a more complex chord or voicing....and I think it would have been interesting with a modulation before closing out the song..
You may want to try these changes..see if it works for you...