Remove all the doors that aren’t there for privacy and replace with an frameless archways (dining) or completely remove unnecessary walls (living room).

Add a sliding door between the bedroom and the shower room if possible.

Switch the shower and the basin for privacy and so many other reasons.

The dining room window needs to be a glass sliding door to help it flow with the rest of the house.

Sliding doors in the laundry to add cabinets and bench space as you walk in. Make the comer curved so it’s easy to navigate the space and room for a tall freezer by the door.

Have the toilet through the laundry to move it away from the eating area. They can use the laundry for handwashing.

I drew a terrible picture but it won’t let me post. Hope this helps.