Help for architectural visualisation rendering/Light setup

I actually worked a bit on it and i think the floor now looks better already. The only thing i can not figure out is how to get these blurry reflections on the floor and the dark area under the cupboard on the left… i add two screenshots to show you the light and reflection-spheres distribution, so you can tell me what you think ybout the placement…maybe you see something obviously wrong. I now took two directional lights because the light of the first directional light wasn´t bright enough and the shydows too soft…

thank you!

a47cbd9fbb15a468cd7bc4bff4ccd66b6b293566.jpeg