No, you guys are not mixing up the cultures. I am Delta-Igbo, so I am from Agbor which is in the Ika part of Delta State. Because we are west of the Niger, a lot of our customs are slightly different than the standard Igbo ones. Most Delta Igbos don't do the palm wine carrying at traditional weddings, we do the changing from the akwa-ocha (white patterned wrapper) that you wear before the bride price is accepted, and then you can change into any color of wrapper and blouse after that. (If you notice, I was wearing peach and white at first, then changed to the gold and green). Akwa Ocha is distinctive to Ika and Anioma people of Delta State in Nigeria.
While my husband's Nigerian family is Igbo (Anambra State), in Nigeria you follow the customs and demands of the girl's family.