Looks like you like the color gold. Is that true? Are you stuck with the white walls, or can you paint them?

For contrast, I would stain your headboard and the chest of drawers an espresso ( dark ) color.

The wall behind your headboard needs some artwork, and I would choose a themed grouping of at least 3 prints. http://www.overstock.com/Home-Garden/Expression-Helix-XXL-size-Gallery-wrapped-Canvas-Art/9538941/product.html?refccid=X6TOKALV5UPJ2JSFPTUEJE5MGQ&searchidx=24
Check out this link for a wild piece of contemporary artwork on Overstock, above.

Once you get something you love, add more stuff that goes with it.

i would say that you should put a nightstand right next to the bed ( right), but also have a piece of art work which it would make the room stand out, finally you could either move the closet and dresser and switch the places or you could but a bench in front of the bed and maybe have a rug there.

Do u advise wall light or something, I can't paint the wall. Do u think wall paper will be a good idea. Bed is grey not gold the way it looks in the pic. Which color wall paper can go along nicely. Also closet is quite big to come at the place of dressing, hence won't be able to move that. Curtain suggestions as well??

Okay, I saw gold in the curtains, so I thought that was an indication of your accent color. Gray can be your theme color, not my favorite. Find a wall decoration that you can make a statement with, then go with that.