O' Christmas tree

Merry Christmas and Happy New Year!
O Christmas tree is a folk song (Much like "Carol of the Bells" I posted on my channel before) but it comes from Germany and this song's name is "O Tannenbaum" in German. My favorite thing about this song is how easily you can change it and get the sound you want.
I had the pleasure of playing this song in a duet arrangement in my school recently which sounded great but to play it solo, I changed the rhythm a little and added few passing chords to make it little jazzy. It felt easy to improvise on this for a novice like me but you, my audience, is the best judge!