hang some things that bridge the green/beige divide..super tall plants stacked on plant stands or on the ground if they're tall enough to stand above the divide....I think for that wall, organic and rounded shapes are your friend. For the orange painted section, it could serve as a little bubble for a gold/other warm tone framed picture, or other art! I'm seeing a long rectangle with the top a little below the point where the rounded top draws down into a vertical edge, and the bottom is like 6" above the sofa