Only a powerful genius could compose such an amazing work. Verses composed of only 2 or even 1 consonant and verses that create almost impossible pictures.
Expounded upon by Baladeva Vidyabhusana in his last commentary. This great video has been put together by the Matsya Avatara Prabhu and his students from ISKCON’s Govardhan Sanskrit school, Śrīmad-Bhāgavata Vidyāpīṭham.
Here are some related links
Books by Rupa Goswami - http://j.mp/17oRChW
HH Sivarama Swami - http://www.sivaramaswami.com/en/2008/12/07/citra-kavitvani/
Powerpoint - http://j.mp/15HwkxA