the flag is outside of the pic, try to find it. another hint: dimensions, dimensions, everything is in dimensions.
File: THE_FILE
Solution:
It wants us to check the dimensions
exiftool abondoned_street_challenge2.jpg
Image Width : 2016
Image Height : 900
2016 = 07E0 900 = 0384
Using a hex editor flip those dimensions.
File: Corrected_image
Flag: urban_exploration