There are far more photogenic spots for family photography in Thailand than just Bangkok. Beaches are the obvious ultimate exotic photography locations in Thailand, but this country has a massive range of spots for unique memorable images.
I am fully conversational in Thai language. (Reading & writing as well.) I can act as a guide so you can actually converse with people who have never met foreigners before. In my experience, these are the most interesting people to interact with.
See the ‘Real Thailand’ and get off the tourist trail. I also lived in Cambodia for many years, so I can guide you there as well, capturing once in a lifetime images for your family.