The plan is a feast for the eyes, like the view
I have suggestions for the granny flat: Parallelism looks stylish from above in the design but is often impractical. Therefore, I would move the door of the storage room to the other side and then start the kitchen unit at the newly free corner, then extend it around the corner and insert a partition wall to the living room, approximately halfway across the width of the room. Then there is space for a small table and a possibility (the corner) for a bed.
Utility room...utility room...and the bathroom, these are critical points. Mentally play through what happens if the plan is mirrored (the staircase remains). That way, you gain a few meters for the utility room. Or reshape the WC a bit and have the access from the hallway to the utility room, but then omit the rear access from the kitchen. You should be able to manage that with a width of 3.30. For kitchen work, it doesn't matter whether you go left around the corner or right.
Upper floor: one could rotate the bathroom in the upper corner of the plan, then the passage from ...dressing room to bathroom at the existing window. Furnish the bathroom differently. You enter the dressing/walk-in closet from the hallway first. Where the shower is now, there is space for a chest of drawers; on the imagined partition wall to the bathroom, a wardrobe unit will be placed. Understandable?