Then you will be able to answer my question normally in the post afterwards, right?
That can also be phrased more politely or neutrally. Somehow it reads like "you better".
Next time please address directly "@ypg" and then a direct question will also work.
Ypg, do you think it’s due to the furniture or the floor plan?
The floor plan is not up for debate. It’s just not "my" house. Personally, I don’t like windowsills and grids in the panes. But here it fits the house and the OP’s wishes. And if he is satisfied and shows his villa here, then he is also prepared for controversy.
If it were my house, rented or something, I would furnish it brighter, yes. Since I personally have far more windows in the dining area in our house, you can then counter with somewhat darker furniture. Dark furniture absorbs light. Light colors reflect it.
I would always try to optimize a room according to its use—regardless of furniture style. Stylish furniture also exists in light colors, and mirrors do the rest.
The living space looks more harmonious.