The black color looks like a stain. Area with a window slightly clipped (curtains and blinds). Something happened with built-in lights, model no, but there is light, and the file .ies incorrect. In general, normal.
народ вам всем срочно надо свой инглиш подтянуть)))ну вот что за me like light?вам не стыдно?)))да шучу...as for the work----emmm,i didnt like that nuclear explosion BG...too much of overbrightness...you forgot to add a model itself of ies lights...there is too much reflection on the floor