Room measurements?

Meantime: paint the bunk beds any color you love…for me I would just do white.

Add bedding that coordinates, but is different for each child.

I like the bottom photo with the gray and white bedding (goes with the floor).

I would go with gray comforters and then you could add a little pink for your daughter and a little color for your son as in shades of gray, blue or a green. Are you keeping the dresser? Maybe paint the bunk bed the same color and it will make the room appear larger. A multi colored rug and some artwork and lighting.

If you paint the bunk bed white, it would make the room feel less cramped. I think the room would look great if you got solid color, matching comforters.