Artists Ryan & Trevor Oakes use their concave easel before sketching the Flatiron Building. (Photo: Aymann Ismail/ANIMALNewYork)
![](https://animalnewyork.com/wp-content/uploads/2014/05/ps-may22-7972.jpg)
Artists Ryan & Trevor Oakes use their concave easel before sketching the Flatiron Building. (Photo: Aymann Ismail/ANIMALNewYork)