Those moss tree plants look lovely. I have always admired them. Your tank will look amazing.
Java moss grows a bit messily, and grows fast (at least mine does!) I haven’t used Christmas miss, but I have seen it and liked the look of it.
I have something called ‘weeping moss’ Vesicularia ferriei in one tank, growing over some roots, it looks great because it’s drooping weeping growth looks like leaves. It does need good light though. I would attach a pic but I trimmed it only yesterday, and it will take a few days to recover! Lol
Here is a pic from a google search to show you what it can look like.
: mature setup; betta, purple rasboras, male guppies, amano and wood shrimp. Heavily planted.
22litre cube tank
: (Tagawa); betta, yellow dwarf shrimp. Pond snails and 1 assassin. Heavily planted.
Midnight in the 57litre tank
(Midnight) ember tetras, 1 amano, 1 ghost, 1 nerite, pond snails, 1 assassin, doing his thing. Heavily planted.
; honey gourami, cherry barbs, green neons, otocinclus, nerites, pond snails, amano. Heavily planted.