I think the first layout is fine. You might want to consider moving the door for the storage room of the master bedroom so that it opens into the hall. That way the kids can use it for overflow storage. Also, that hallway is big enough that I think it could hold a large armour, providing more closet space. (There's no need to sleep in the same room as your clothes, so long as they're not too far off.) Also, don't forget that while the drawing shows kids in double beds, this need not be the case, so there will be more room for furniture (dressers or whatever) in their rooms. Finally, that step to bedroom 4 will not be odd at all. I've seen it in other homes. It looks clumsy in the drawing but it isn't. What you'll see when you come up the stairs is a bedroom door on a slight diagonal. It's only an odd jagged step if you walk like a robot, in straight lines along the wall, which is what your eye is doing on the drawing but you won't do in real life.

First you would need to provide a floor plan and photos of your existing master bedroom / ensuite area.

My husband and I don't like the colour pink especially in the bedroom, I might go for a green bedspread and find a neutral colour for the walls. But any ideas are welcome. It isn't easy when it is your own bedroom.

Would it be more cost effective to leave shower and toilet where they are… or would it cost much more to swap them over? Another idea was to build shower outside the floor plan and go under the eaves… could this be done? Thank you