What a fun space! Love the pillows...I agree with above, lower all the frames, but not so low little ones can reach. The art should fall at eye level about 5'4" for walls and for behind the sofa not more than 12" above it. Then keep the width about 5" inside the sofa length on each side. Your frames are small so you need the close together for impact. I would start with some pretty curtains for the door and large window and then a simple Roman shade for the small window- since your girls play there you don't want anything they will grab hold of. http://www.houzz.com/ideabooks/query/how-to-hang-a-photo-gallery

Hi. My instinct is to use a set of pictures of a consistent style and theme -- and I'm thinking photographs. I think b/w pics would look wonderful, but not with the pendant light you have. So if that is staying, I'd prefer more feminine and colourful pics. If you were to use b/w, I think a slim black frame and a matte that picks up the grey of the wall would be great to transition between that and the photographic grey. Colour could get away with no matte, but I'd still suggest a very slim black frame to outline the images. As below -- please click on the image if you can't see both the room and the two sample pictures. The colour one came from a common domain site; I've provided the source of the other (though I cropped it -- the original is even better). http://www.alienregion.com/bpinbw.html

You can paint the wall with a magnetic paint such as this one: https://www.resene.co.nz/comn/whtsnew/magnetic.htm

Hope someone can help me. We have a new living area that is 18' x 12' which is a great size. However we have one 12' wall for fireplace/hearth/shelves, one 12' wall with sliding doors, one 18' wall with picture windows and view and the last 18' is open onto the entrance and off to the side open plan area. Not sure what furniture to buy and how to place it. Anyone have any wonderful ideas? Contemporary style, but looking for cozy/comfortable feel. Thanks, my email is janepoulston@gmail.com