Some suggestions of captions to work on variations:

a person standing in a city with a christmas tree

a person standing in front of a christmas tree

a person walking down a street in a city

a city with a christmas tree in the middle of it

a man standing in front of a christmas tree

a person standing in front of a christmas tree

a city with a christmas tree

a man standing on a train track in a city at night

a man walking through a city with christmas trees

a city with a christmas tree in the middle of it