When I look at this work..one thing come in my mind is the linguistic barrier.. the window represents the communications between the communities. If it is clear they understood everything between them. The reflection on the window is the total miss communications, it rebounds as as it is.. The dark side in the wall represent the one who stay away from that because of the communication issues. Thanks for sharing with us.. @velimir

I look at your "The Window" closely and thoroughly.. I couldn't found any trace to go in..