I assume that what they consider "Islamic Art" is actually Mideastern. Looking through some of H&M's Gallery their Bohemian Collection seems to have a strong Greek and/or Italian influence. This may be what some are calling Islamic. But just a quick glance at one female outfit was sufficient for me to say that is not Islamic and I can not see a Muslim buying any of H&M's clothing, the one outfit I saw, was extremely haram and forbidden in Islam.