I thought you said it's master bath.

For master bath, it is most likely used by 2 or more people if a family has small children. Therefore, double sink is a more desired feature than separate tub and shower in my opinion.

However, if you are targeting older couples who does not need to rash in the morning, maybe a separate tub and shower is more suitable for their relaxed life style.

Again, the powder room does look very nice if it is not a master bathroom. I admire your ability of making your designs to beautiful reality.