My Earina Autumnalis orchid flowered 
I have also got lots of other plants Im proud of, but I’m away from home so this is the only photo I’ve got.
Your terrarium is looking beautiful! I’m planning on making a large cooled terrarium for alpine plants sometime. All my current tereriums are small so it will be quite a challenge.
I would tinker for a bit but definitely not spend any more money on it as it’s not worth the money. Where im from you can often find cheap B&W laser printers on facebook marketplace or another second-hand platform for free or for very cheap.
Laser printers will be much cheaper in the long run so I strongly recommend one. Unfortunately a good colour one is very expensive but old B&W ones like the Brother HL2130 are still great.
Facebook marketplace does suck but sometimes it’s the only/best option, still steals your info tho
I mean if you chose a bamboo variety that loves it outside but hates it inside then it will be a big challenge to keep them alive inside (most bamboos you see growing outside won’t like it inside)