Thank you @Chip-Valecek and @Coreyartus, you're right the light source looks confusing.
In my thumbnail the light source is coming from the door so I should definitely darken the wall and extend the shadows. I will experiment and try to make the reflection on the floor more obvious too.
That was the first time really doing value studies and I didn't think much while doing them but it made sense. I think I got lost doing the decor of the interior and choosing colours and furnitures
@Marsha-Kay-Ottum-Owen thanks, but at that point I won't change the comp
Thanks again for your feedbacks, helps a lot!