Mehwish, if u're wheatish and select a wrong shade.. u'll either look grey (cuz of the lighter foundation) or orangey (incase it's a darker foundation)
The pancake makeup can be spotted from miles.. it's not practical for everyday makeup..it's alright for photoshoots/runway/theater! A illuminisor will give u're skin a dewy finish.. and going "fairer" won't make u're features pop!