Try a slightly lighter version of the green tile.

You also might want to try this Kohler Aspen Green toilet

If you want to stay with a white, look at BM White Blush, OC-86 or SW Palish Peach 7114. The dark wall behind the toilet is not doing the room any favors. It brings too much attention to the toilet IMO.

Based on the mid century looking furniture piece, I would go a bit bold. Keep the charcoal wall behind the toilet and paint the walls the same green in the floor tile.

Good luck

Thank you! I’m loving that green toilet.

I love the green toilet, too! Perfect for the rest of the colors.

https://wallsrepublic.com/products/green-coral-like-petals-bold-floral-wallpaper-r9254

T75460 Asian Scenic Dynasty Wallpaper By Thibaut

The Asian Scenic Dynasty paper is one of my favorites, and it looks perfect in that colorway.

I'd find a nice blue to play off of the red tones in the wood vanity and compliment the peach tile. Paint all of your walls this color. No need for an accent wall nor for wallpaper. Don't try to get too literal with matching the blue-green colored floor tile. Frame your art with a wood frame to match your vanity.

Love how you've painted various colors that are repeated in your floor. Love the green toilet,, but I'd keep the white one. Add the green color with towels/ and rugs. Keep it simple. It's easy to get carried away and make it too busy, unless of course you like that look. IMHO I prefer calm bathrooms. = Simple.

Thank you all for the fantastic suggestions. Now I have some decisions to make. I’ll post a pic of the final look.