There are many kinds of accent walls and when you get it right- magic. Factor in how detailed you go, as little girls change into big girls in a blink of an eye. And then you are grabbing for a paint brush again, with a dark paint on the wall- that requires lots of primer and coats of paint to cover. Give us more detail if you need more specific advice... Furniture...color scheme... Bedding... Space... Childs age....

thanks all for replies. I want to highlight the wall as rest walls are almost white and need some change. there are white tiles on the floor, red sofa set and mostly brown furniture. I have planned to give a grey texture on the front wall (hoping it will look nice with red sofa). the wall beneath the light( in the photo) will continue to be white. though I would like to highlight it in some way as I have kept a box console in the photo above which a round mirror will be hanged. pls suggest

Instead of the solid grey, you can go for sketches in grey with flashes of mustard/ yellow. Or, look up these links for wallpaper ideas https://goo.gl/images/OrCtY1 https://goo.gl/images/0ZpAmU

Though I voted for the wood panels Its not the always that case it depends upon design to design. To choose any one will be injustice for other design.