Where does inspiration come from? Why one day you see ordinary building and feel that you have to stop and start sketching otherwise you can die (well, too much drama here, but you have got the point)). And why next day you see beautiful buildings, colors, composition and turn away your head in disappointment?
I hope this disappointment will leave me alone and the joy of creating will be back.
Meanwhile I post the quick sketch done with Pentel ink-brush pen. I have just bought it and could not figure out how the pen worked, the brush was almost dry all the time. Then I added some watercolor pencils. And returned back to "I do not want anything arty around me" mood.
I hope your creativity never leaves you.