Not sure what you mean by the "oriental look". White and offwhite are rare to non-existent in actual Eastern decoration as they are the colors of ghosts and death. However, you can use your very pretty 4-segment wall art as inspiration. It seems to have various pale shades in it....pink, green...?? I'd pull one or more such color out and choose a pretty, oriental-style rug based on that, preferably with touches of white and black. I'd also use the art to derive a wall color.

After that, just need some more seating, occasional pieces, accessories, and patterned pillows for the couch.