@Jadoube that's a great approach, noting that for future use! I sometimes take inspiration from artwork in the same way but hadn't considered fabric.
My home is quite eclectic and it all works as a whole, each room in itself also ties together because I echo colours, designs and textures within that space.
For example in my living room all my hard furniture is rougly the same colour, I have a cushion on my sofa which matches a dominant colour in a print on the opposite wall, a table lamp with a lampshade that matches the colour of a statement wall on the other side of the room for balance, a textured cream and black rug on the floor which by happy accident echoes a paint effect I did on another wall and a textured cushion I have on the sofa opposite (I said eclectic!). Overall the echoing is subtle and definitely doesn't feel overly styled, but pulls it all together without being obvious.
OP mentioned she has darkish wood/mango furniture and rustic gold picture frames and mirror, so she could add a rustic gold lampshade/decorative touches, or add some decorative bits to her room which are similar to the colour of her sofa etc, and maybe pick one other accent colour for other soft furnishing/decorative pieces.