Who will be sleeping in here? You or your children?

Us. Master bedroom

You said currently, do you want/need two beds in the room? If the beds are staying I could see a taller night stand/mini dresser between the beds with reading lamps. I would also change the ceiling light to a fan/light combo. I could also see some kind of stylied artwork (wood or metal) in a solid colour on the headboards.

That sounds pretty Ans what color do u feel can work? Night stand

I would go with black wood so the grain shows through.

I would add some lamp, chandelier, wall art, rug and curtains. You can go monochromatic or bring some color with décor

I prefer natural bedding to polyester one.

Oh wow so beautiful!

That rendering wow

Those headboards ^ are a good idea as another layer against the wall treatment behind the beds. I lke the pale bluish/gray. Is your wall treament behind the beds that color? A bluish/gray? Hard to tell on my screen.

Paint the walls in a blue/gray color to complement your wall treatment, like Sherwin Williams 'Evening Shadow' 'Passive', you might have to cut it, and then the headboard fabric can be slightly bluer as in Celery's render.

Then the ceiling would be very bright pure white to bring out the blue/gray in the walls and give the effect of the render with uplighting.

I think you can achieve the effect of that render this way. Add the contrasting warm toned bedding.

The gray screen looks like it has green in it so not good.