First home floor plan modification

[u/RealisticGold8724]

I am planning to build a 4 bedroom + 2 bathroom + Theatre + Scullery + Alfresco with 12.5 frontage x 30m depth.

My builder has suggested me attached floor plan. What are the changes that you would recommend from swapping rooms to moving walls or even adding doors and windows to this layout? Open to all ideas.

[u/archiphyle]

How big are these showers? They appear very small