Ta3beer has a collection of Obama cartoons from arabic newspapers. Some of them are negative:
Some are appallingly racist
and some are positive and self-critical at the same time:
–A minority lawyer who is active in human rights within the Democratic Party
–Was elected president of the United States of America!
–A slave with a dark complexion and a foreign agenda
–He can't even dream of getting an Arab citizenship
Check them all out here.