With the help of youtube tutorials, my friend providing me with some models and your help from my previous topic, I managed to fill [By my opinion] the empty space:
Since the room does not look very modern, I would choose the bottom-most chair that’s made of wood. The other chairs look too modern for the room. My second choice would probably be the leather chair because it’s not as modern as the white one.
Also: wood goes with wood.
It depends. Regarding all dining areas have different chair selection choices it doesn’t need to be all just wood I see houses have a few of those chairs in the second image and first they usually have a white color, not that color that’s already added to it.
In my opinion whatever works best to you could i would have to go with the first image or a type of design for the chair since I don’t know what style of theme your currently going for if you feel the need to go with a wooden chair choice try adding a design to it. Some common materials are darker wood, light wood, ect.
The last one would be nice but I think the white seating area just won’t fit within the design It might be a nice idea to see which chair fits to your dining area. I feel like the image below would be nice to add.