Is this the cabin? I wasn't sure. If not, do you have a photo of the space you can attach here to get a better idea of what might work?

Looks like you have transitional taste which is good for mixing styles it's to tone on tone and a punch of color would be good .Change the mirror out with a great piece of art work that would create a connector for your colors or a launching pad as we call it in the interior world and I would consider moving the chair it;s to large for the space. use a rug or your piece of art work to introduce a new color for the walls. Imagine your self waring a beautiful black dress and white shoes then you would ware a black and white hounds tooth hat or a hounds tooth scarf what happens the scarf or hat becomes the connector or launching pad then it all comes together as a whole. many times it's the missing link in a room. It can open up a whole world and it can be applied to every room. A single article is what we use to connects the dots in every space. Have fun . So pick a color of your favorite choice out of the rug or art work and you will be fine. Dale

The accent wall was a plaster with texture to look Italian.

Was greanish olive with a hint of brown.