I guess it depends on the type of wood it is, bio-film is generally ok. Except for aesthetics, I don't think you can have too many plants. They will help buffer the ammonia spikes. If you're not adverse to it, get some snails in there. They'll work on the biofilm, and the snail poop will help with cycling.
While Bettas are pretty resilient, I'd keep an eye on the ammonia levels until it's fully cycled. If you have another established tank, borrow some of the filter media from it to help jump start the new one..
The tank looks nice!
Tanks
75, 2 - 55s, a 20 long, and 2 ten gallons - as well as an old claw foot, cast iron tub converted to goldfish pond
Critters
Fish - Glolight Danios, Dwarf Gouramis, Chili Rasboras, Kubotai Rasboras, Tuxedo Guppies, Otocinlus and goldfish
Invertebrates - Neocaridina, Amano and Ghost Shrimp, Nerite and Mystery snails,