Way out there but this fit the green, black and white theme
The cutout in the builtin bookshelf is this one: https://www.amazon.com/gp/product/B07FRDZ5NF/
We actually don't know the wallpapers in the dining room & guest bath, they predate us by a couple decades.
My mom gave it to me for Christmas 2 years ago, I think she got it off Amazon. It’s not the one in this link but it’s very similar, and I also have the one I linked in another room in my house, it works great and is super easy to use! https://www.amazon.com/Lights-Indoor-Spectrum-Adjustable-Tri-Head/dp/B08HS5PJ1P/ref=sxin_19_pa_sp_phone_search_thematic_sspa?crid=2UD37A1EW7TPO&cv_ct_cx=grow+lights+for+indoor+plants&keywords=grow+lights+for+indoor+plants&pd_rd_i=B08HS...
https://www.amazon.com/BlissLights-Sky-Lite-Projector-Ambiance/dp/B07L8R5PK6
But they have a newer version with more colors now.... along with other similar brands.
Doesn't have to be plants, tiny figurines of whatever you fancy . You could even stencil paint the outside and put an electric tea light in it.
https://www.amazon.com/WGVI-Terrarium-Succulent-Tillandsias-Decorations/dp/B085Y123GY