horse show taking place in a large indoor arena

horse show taking place in a large indoor arena. There is a crowd of spectators in the stands, observing a performance with several white horses being ridden around the arena. The riders are wearing hats and jackets, and they are each carrying a flag, including a Spanish flag and an Andalusian flag. The arena is covered in sand, and the overhead lighting is bright. The building’s ceiling has a pattern of triangles and circles. The audience is filming the event with their cell phones.