A typical 食堂 (shokudō), an eating place of the Shōwa era, Japan, cheap & filling. ☆I seldom see this type of restaurants around my place any longer, but they can still be found in Tokyo downtown (non-tourism areas) or countrysides.
The dominate line is vertical. It makes the room feel taller, but trash and oddly placed items remove the benefit of height to the room. To improve the room, i would clear the middle space out and put in more horizontal lines.
Mailbox, Letter, Post Box, Mail Boxes, Letters, A Letter