the problem is that the image by it's very nature is original research the student who by the way did a very good job has built that image by pulling together a bunch of different sources combining them and presenting a single final product on wikipedia we classify that as original research which we don't allow as someone who has in the past taught both high school and college myself i know that it's actually an odd thing to find out that basically any research paper that a student would write for a typical college level class as well as a good number of high school papers would be considered original research under wikipedia rules now it could be possible to include each of the points individually expressed in the image within the text itself though we'd have to measure other issues like how relevant each point is to the larger topic but anytime we draw a conclusion by synthesizing information from multiple sources we're in danger of violating wp or i hope this helps let me know if you or the student have further questions