Every filmmaker has his/her own distinct way of approaching cinema. Some are known for their lively characters, some for comic timing while others for their darker narratives. However, it's when the director's style starts looming large over the script of the movie to the extent that each movie looks the same that the actual problem starts.
However, Jay Solanki from Students of Cinema saw the lighter side and created hilariously true summaries of famous Bollywood directors in the form of posters. Check them out here: