I was hooked from the very first notes. The ostinato and the two chords (Em and B7) at the beginning reminded me of Céleste.
I went to listen to your Christmas music (which is very good) but I didn't perceive the inspiration. Except that your passage at 0'38 is very catchy.
You also had the good idea of reusing the motif but with a different rhythm at 1'37. It's really cool. The whole thing is very good.