Enjoying your tree kit design, and decided to post a few extras:
-- A base to steady the tree.
-- An option of a 3-way split at the 2nd level up
-- Some "leaves" to finish off the branches.
Print the bae with a brim for a bit of quick extra surface area.
Print the branches with a brim for more stability while printing.
I did 0.4mm for the bigger pieces and 0.2mm for the smaller pieces.
Still printing some of the leaves, but think the tree looks great, even without any smoothing etc.