Partner says they're very similar and overall pattern is the same. The real difference, structurally comes from the third line.
wi$h li$t:
1st Add9 to 1st Maj triad
Add6 to 6th min triad
Sus4 to 4th maj triad
5dom7 to 1stmaj7
Last Christmas:
1st Add9 to 1st Maj triad
6min triad
2min triad
5 dom7