Notism is a tool which lets you place notes on images. Inside a note more comments can be made by various people. This can create a discussion and is therefor useful for graphic design students who are looking for feedback for their work.
There is no Notism plugin for WordPress, but I've noticed Google Drive has the same comment/note function. Is it possible to somehow include Google Drive images in a WordPress site and have people place comments on it? Or is there a plugin for WordPress which can do the same?