How can i redo my room to match this bedspread?

I woud leave the bottom half of your walls white and paint the uppser half a soft sand color. On the shelf wall, go a shade darker and paint just the wall inside the shelf ( does that make sense? the back wall part of the shelf area ) so that you have contrast between the white shelves and the walls. Add some bamboo blinds and you've got a nice beachy room. The bedspread will pop against the neutral sandy background. Great bedding!