ASCII art CAPTCHA

Hello all,

Yesterday I added a new CAPTCHA type to CAPTCHA Pack: ASCII art CAPTCHA. In this CAPTCHA the user is challenged with something like this:

  888888ba              88888888b   888888ba    88888888b

  88    8b             88          888b   88

 a88aaaa8P'  .d8888b.  a88aaaa     a88aaaa8P'  a88aaaa     dP    dP 
  88   8b.  88ooood8   88          88          88         88    88 
  88     88  88.  ...   88          88          88         88.  .88 
  dP     dP88888P'   88888888P   dP          88888888P  `88888P' 

or this:

             __        __  ____   __  __  _____    ___

  _ __ ___   \ \      / / |  _ \  \ \/ / |_   |  / _ \ 
 | ' ` _ \   \ \ /\ / /  | |) |  \  /    | |   | () |
 | | | | | |   \ V  V /   |  _ <   /  \    | |    __, |
 || || ||    _/_/    || _\ //_\   ||      /_/ 

More than 20 fonts are included (based on the font definitions from http://www.figlet.org/).
I expect this to be a hard one for the spam bots to solve.
Tell me what you think.

PS. It's currently only available in the development snapshot, not yet in the official release.
PS2. the CAPTCHA for submitting this story sucks, especially because I previewed it several times.