Like connection between kitchen & garage. Tweak further to have walk-through mudroom, laundry, side entry, narrow house-stores/pantry & main entry closet. Other side of kitchen open to dining. Other side of main entry would depend on width of lot.
Shared bathroom toilet in separate room (functions as powder room?), eliminate entry hallway and move garage over, make lounge room the entry with closet/storage along one wall, make hallway in master longer, make one bedroom the exercise room