In my opinion, a cuckoo clock is a very detailed design, but you say you want a simple design for the room. When you say simple, are you thinking of no wallpaper, no wainscoting, and no accent color on the walls? It seems as if dark orange is a color you favor. I see it in art images and in your curtain color. If this was my space, I would paint all the walls one or two shades lighter than the beige of the sofa to keep the room as bright as possible because the room has no direct sunlight. I would paint the ceiling 1/4 (one part wall color to three parts white). I would use a satin or eggshell paint instead of matte, semi-gloss, or high-gloss paint. I see some discoloration on the wall behind the sofa where the brown color of the sofa frame has worn off onto the wall. I suggest attaching bumper dots or strips on the wood frame of the sofa (similar to the ones used to keep cabinet doors from making a lot noise when they are closed quickly). I would consider painting the sides of the column with the cuckoo clock brown to match the clock. I would do this to call attention to the clock. I would remove the orange curtains and replace them with floor-to-ceiling length draperies hung as close to the ceiling as possible to make the room seem larger and taller. I would change the drapery color to match the walls, perhaps in a muslin-like fabric, which is a casual fabric. I always take my art to a professional framer. I have conservation matting and museum glass used for my art. I would have the three images you have rearranged as a collage in a very large single frame with medium to wide matting between the images. I would have the mat and frame color(s) enhance the images, even if it is a color I might never have thought of on my own. I would hang it above the sofa. I would use the orange drapery fabric to make throw pillows for the sofas. You did not attach a photo of the flooring in the room. A medium tone floor is easier to keep looking clean than a light floor/rug or a very dark floor/rug. Other "Houzzers" will give you completely different ideas. Use the ideas YOU like and enjoy your home!

Some links for you... http://www.etsy.com/listing/77999666/custom-drapes-modern-animal-print-in?ref=v1_other_2 http://www.etsy.com/listing/97412023/16-cushion-pillow-covers-pillow http://www.etsy.com/listing/114620966/designer-pillow-cover-20-x-20-lollipop?ref=sr_gallery_26&ga_search_query=modern+orange+pillow&ga_view_type=gallery&ga_ship_to=US&ga_page=10&ga_search_type=all http://www.etsy.com/listing/117132810/decorative-pillow-modern-pillow-floral?ref=sr_gallery_32&ga_search_query=modern+orange+pillow&ga_view_type=gallery&ga_ship_to=US&ga_page=4&ga_search_type=all

The photo's a bit dark, so I can't quite tell your colors. Looks like you have all solid colors in the room: sort of a brick-colored upholstry, dark wood framing and cream walls, with plants outside the window. I think you need so 'pattern' to relieve the solids...at a minimum a tone-on-tone so that there is some texture or pattern involved. get close approximations of your existing colors (swatches, paint chips) and head off to the fabric store looking for something that doesn't feel overpowering, buy a yard and bring it home for trial and error -- you may end up with great pillow fabirc, or a new drape.

I am not sure how deep and bright the two colors are that you each have selected but I might suggest that you pick a green and blue that are soft rather then intense colors. My favorite paints are ones that are made by Restoration Hardware. Of course you can get any paint company to help you achieve very similar colors. Look up Restoration Hardware and see if there are greens and blues that you each like. Most of their colors work with each other. Have fun..........