Download the file, convert the black numbers on the image to alphabet characters, then shift by 13, there's a password (twellicklosescto), use that on steghide, flag.

Flag:flag{take_care_of_whiterose}

Zip password of bonfire, use steghide to get flag of:

Flag:flag{the_night_circus}

Alternatively, Le Cirque des Rêves translates to the night circus, which is the flag.

Unicode steg,

Flag: flag{stego_from_the_zero_width_dimension}