Christianity: Enlarge Christian section on Second Commandment, etc?
Islam: Diversification: Discuss aniconism in Shi'a and other branches, sects, etc.
Islam: Actuality: Discuss how aniconism has led to conflicts between Muslim aniconism and Western free speech; specifically the Jyllands-Posten Muhammad cartoons debate seems to portray two sides that are astounded that the other side is holding the position it's holding.
Other religions/cultures: So far the topic is discussed only for monotheist religions, thus leaving a blank on much of humanity. Look for other cases of aniconism.
Causes>Economical: Add an historical example or a footnote reference to support the point currently made.