Hi. Do you have a pic of the room to get an idea of the size and the style/colour of flooring? I must admit I wouldn't go with a white sofa for a playroom unless you cover it with a throw!

If you're sticking with that sofa then an option is to go for the navy sofa. This may be too bold for you but...I'd have the kallax units all along one wall so you may need 2 of the taller units. Perhaps put some storage on the bottom shelf for craft bits etc. I'd paint that wall in dark navy and the remaining 3 white (similar to colour by Benjamin Moore). I'd go for white curtains with either a navy trim or border. If you can sew buy really cheap white ones and add the navy. You could give it a very slight modern coastal feel. These cushions are by Barbara coupe but are too dear. I'd look for some with a red trim or pattern. I'd add a navy and white striped rug and a modern pendant light. Finally maybe a couple of fun coastal cushions picking up a little of the red on the window seat. If that's too themed just normal cushions picking up blue, white and red and maybe a geometric rug

Other pic

Final pic, not sure why you can't load 4 anymore!

Glad you liked it. Is this sofa cream or white? It all really depends on how good your daughter is! It looks like a ncie comfy sofa. Is this an ikea one with replaceable covers?

That's good. If you were to go for the navy scheme though I would probably balance it with the navy sofa unless you added navy cushions to this one. You could always get a pvc type tablecloth for the coffee table so she could do some craft work if she's into that kind of thing. Or could come up with another option around a grey sofa? It really depends whether you want the room more play or library orientated