Phosphophyllite, Houseki no Kuni

A woman dressed in a Phosphophyllite costume from Houseki no Kuni, standing in front of a pool with water splashing behind her. She has short blue hair and is wearing a white leotard with gold accents on the sleeves and gloves. The overall impression is that she is posing for a photo shoot or attending an event related to the anime series. The setting appears to be an outdoor location, possibly at a convention center or park, given the presence of other people in the background.