You can use paint or wallpaper to finish the room.

Just make sure the item you select doesn't lean blue or green.

I like this modern look.

https://www.gilt.com/boutique/product/159526/153298878/?country=US&currency=USD&srsltid=AfmBOopW8myw74NLfPON_0UwqYevdrRoRlm9z41uZkPelCzQeeH9HZHnkC4&dsi=DIR--ac8c9d9a-6914-46f3-a23b-72630436c93e&lsi=87ece7e1-dc9b-4380-80e1-0efa1f146c80

Thank you for the recommendations!! Keep them comin gplease.

Would it be a crime to do something like this // something more bold. ::

I do not think the art is “fighting with the hand towel.” I think it looks fine. It is quirky... but it is also a fact of life that a bit of the unexpected can add a lot to a space. It is really all in the details... As Charles Eames said: “The details are not the details. They make the design.”

All of that said: My take on the space is that, for a guest bath, it is oftentimes helpful to approach the space with the general mindset of it being a hotel bathroom. And for that, imo, your art is a bit strong. Art is a very personal thing. And I can understand that you may want the bathroom to be a bit dramatic. But there are other ways to introduce drama. You could get a leopard print soap dispenser. Maybe more dramatic light fixtures(s). Your art does not need to look like the guest(s) just landed at Little House on the Prairie - but they should not be scared to go into the bathroom. :)

Wallpaper is also very taste specific. So my suggestion would be to just get art that is more guest friendly, and take it from there. Hopefully, whatever lighting you have in the space is dimmable - so that guests can set their own lighting levels, for mood and comfort.