In this design, we try to make a spacious area, with minimum changes.
The living-dining-pantry area is the heart of the home, therefore we make it open, to make the space looks bigger.
We put special thought in the pantry area, we propose an island and a bar table, that can be used both as a lounge or to eat breakfast/brunch/light snacks. And as the kitchen is open, it will create a more spacious space when you enter the house.
As for the other area of the house, we try to improve the openness of the tavern area in the semi-basement floor, and the hallway on the first floor.
All in all, we think you have a beautiful house, since you didn't request the exterior, we can't show you, but I think the composition is good enough, to make it modern, you just need to change the windows and door into a more modern one (aluminum - black preferably) and use natural color for the wall (such as beige). There you will have a new modern exterior with minimum changes.
Hope you like the design, and hope you stay healthy during this season.