i experienced the life in jeddah,riyadh and now in qatar. relatively to ksa, doha is excellent. people are so friendly, more freedom, but it is by far more expensive than ksa.
so u have to insure:
1- school
2- acceptable accomodation
and be sure, ur life will be better.
earning will be lesser. but ur life quality better.
no need to be covered, u can act same as in lebanon.
good luck