What is the preferred format for family photos when applying for a marriage visa extension in Thailand?

When applying for a marriage visa extension in Thailand, it's important to know the preferred format for family photos. While some immigration offices, like Chiang Mai, require 6x4 landscape photos, others like Krabi and Chiang Rai have accepted printed photos on normal A4 paper. It's advised to include pictures of you and your spouse in various familiar settings, like in front of your house or sitting together in your living room. Dress in a casual but presentable manner, avoiding casual wear like beach clothing or selfies. Aim to provide several options for the immigration officer to choose from, ensuring that at least one photo includes your house number visibly in the background.