January 10: it's Vodoun days in Benin, a special holiday for traditional culture and religion, these last years transformed into a "money maker" by the government (see comment).
More: https://amf.didiermary.fr/benin-vodun-cult-traditions/
Egúngún (Yorùbá) are masquerade or masked, costumed figure, for ancestor reverence, or the ancestors themselves as a collective force.
The spirits below are from Benin. (source unknown)