For shabby chic and country comfort - start bringing in patterns and color - think patterns with similar colors, think small flowered patterns if you like - don't have to match - suggest you find a piece of material you like and build around it. Persian and other ethnic rugs can lighten and add interest - give it the country look. if you can afford new furniture great - don't get brown - rather something lighter? If you must stay with what you have start collecting interesting comfy throws and pillows - keep it light and bright

Changing your lamps to something lighter could help give you country farm look - your present look is more sophisticated