I have been playing around with PicLits. What a great idea to use this site to inspire writing in the classroom.
I can certainly see possibilies for children to work together to create these. What a shame that you appear to be unable to use your own graphics but at the moment using these ones enables children to understand the concept and then they could go on to make their own.
"PicLits.com is a creative writing site that matches beautiful images with
carefully selected keywords in order to inspire you. The object is to put the
right words in the right place and the right order to capture the essence,
story, and meaning of the picture."