Can photos taken wearing a deer headdress be hung on the wall?

It can be hung.

Deer is a spiritual creature that represents health and longevity in Feng Shui. The deer boy is one of the disciples of the old longevity star in the Antarctic Immortal Temple. In the classic masterpiece "Journey to the West", the longevity star's mount is also a deer. Therefore, the presence of deer in paintings usually symbolizes longevity, health, good luck, and eternal youth. It is also often used to express prosperity. Therefore, it is very auspicious to hang deer paintings at home.