[Personal UX/UI review] designing signs on architecture

I was passing by below buildings the other day and what designers did to their buildings caught my eyes. 

Positive: displayed a communication channel to passers-by

Positive: targeted on one thing instead of many: positioned its place for studying people 

Issue: displayed no recognizable signs (though its services may be provided during day time, the color is not noticeable); repeated same logos all around without sending a particular message

Solution: color SONY sign to be catchy; put some catch phrase around the building to both improve Sony's image and increase the center's physical presence 

Lesson: convert architecture signs to a communication tool to passers-by