Are there pictures/paintings of Nirvana? I´m writing an article about pictures of the afterlifes/havens in different religions. But I wasn´t able to find pictures/paintings/artworks that picture Nirvana on the internet. So my question is: Are there pictures of Nirvana?
Nirvana isn't a heaven, but a state or condition where there is no
  death, because there is also no birth, no coming into existence,
  nothing made by conditioning, and therefore no time.


See Wikipedia - Nibbana

It isn't a place of pleasures, like heavens typically are, but a state of no becoming, no dualities like pleasure and pain. It neither is, nor isn't.


  In a famous passage in the Nibbana Sutta (Udana 8.1), the Buddha
  states:
  
  There is that dimension where there is neither earth, nor water, nor
  fire, nor wind; neither dimension of the infinitude of space, nor
  dimension of the infinitude of consciousness, nor dimension of
  nothingness, nor dimension of neither perception nor non-perception;
  neither this world, nor the next world, nor sun, nor moon. And there,
  I say, there is neither coming, nor going, nor stasis; neither passing
  away nor arising: without stance, without foundation, without support
  [mental object]. This, just this, is the end of stress (dukkha;
  suffering)


Does that mean there are no heavens in Buddhism? Not like the Christian idea, as a final destination, no. 

However, there are realms (ex. Trayatimsa) which are more pleasurable than earth, where one can with enough merit be reborn and eventually die to be reborn again, ad inifinitum till Nirvana i.e. cessation. See Wikipedia-Buddhist Cosmology

Here's an artist's imagination of Trayatimsa realm, however there can be no picture of Nirvana. (Image source: Wikimedia-commons)



EDIT:

Considering it some more, I think the abstract expressionism of the Zen Ensō or circle is what you want.


  The ensō symbolizes absolute enlightenment, strength, elegance, the
  universe, and mu (the void). It is characterised by a minimalism born
  of Japanese aesthetics.


Source: Ensō - Wikipedia