Its always advisable to raise angel investment close to home. Unlike other investors who might invest and go hands-off, Angels like to active get involved – and You would want them to. It becomes difficult to get that level of association with an angel abroad, who might not get to that level of comfort in the first place – Unless you know them personally, and have had some working relationship before in some context.
Raising money will never be “Easy”, understand what they are looking for, and see if you can make it a strong enough proposition that they cant pass on it easily.
Fear and Greed, all over again.