I am a second year architectural student , taking design course for the first time . The project that we have to design it is a bank branch . my concept is water and it i got my inspiration from a quotation says " Money flows uphill toward water" .  I  made a brain storm about water properties , and it helped me in the logo , slogan and the name of my bank , as well as , design problems and ideas . 

however , we are asked to do  concept development sheet showing all the process that we went through , and this is the part that i am stuck in . 

Is there any suggestion of what can i do to represent my idea and concept in a clear simple way .