I red all of your post you gave useful information regarding interview preparation but i have some objections about some of your comments relating Hijab, as far as my knowledge & experience is, Embassy personnel reject the picture who are modified Like applying some cosmetics filter on face through some studio photo editing softwares but they can’t object on a photo who is proper in hijaab and you have hijab statement unless it is edited as I mentioned earlier.
Advising people not to wear hijab just to come to USA is against our religion.
Just for the Information,
These Americans people appreciate who follows their own cultures.
Thanks