here is the settings of the lights, furthermore I have erased the old scene and placed instead (at the origin point) the one you created…hate things that are not centered! 
here is the disposition of the lights:
here are the settings of the lights (the ones of the kitchen):
lightmass adjustments
point light settings:
sun settings:
post process settings:
…that’s all, now is your turn to have fun with that scene 
Cheers,