I'm not certain how to resolve the error, but that is a syntax error. Your error message is saying "Hey pal! You code is almost working, but you have a syntax error around your (images ...) code."
Is "images" the proper syntax? Also, it's also very helpful when you paste your code along with the error message. That can help people better assist you. Good luck! :) -- Joshua Branson Sent from Emacs and Gnus