Before Buying Furniture for my Bedroom, can I get a vibe check on my ideas?

I just painted my room green (shamrock from SW) and before I buy more furniture I wanted opinions and to see if Im nuts about my plans.

Ignore the Katana, a parent bought it.

Generally want a cozy and bookish atmosphere, planning on shelves and a large, large desk opposite the fireplace.

Fabrics and accent decorations, warm tones and lighter greens, brass too.

Main furniture I was planning on being mostly black/dark and/or another wood I havent decided on yet with brass accents as well. Right now im thinkin walnut or like an oak are the frontrunners for the wood choice, something to complement whats already here cuz I dont want more of this orange.

Are these ideas tennable you think? The white trim cant got but I hate white furniture.