ANSWER:

All what you have mentioned is not from the Sunnah at all and hence innovation. 

No problem if women witness the sacrifice. 

In the subcontinent there is a habit of bathing the animal applying perfume a day before slaughter then person on who’s behalf the slaughter is done,passes his hand on the animal then slaughter is followed with the recitation of takbira aloud in congregation sometimes the ladies are also present is this allowed