Hey friend, interesting foray into street art photography. I think your best photo here (in my humble opinion) is this one... The composition is eloquent, leaving the train that seems to be approaching in the right third. The horizontal rectangular frame allowed you to fully utilize the diagonal lines of the remaining two-thirds. That shadowed door on the far right also added some drama. Perhaps it lacked a bit of light and contrast to enhance everything, but it's a good photograph. I think you have vision and instinct for this type of photography and street photography in general. Work more on the lighting and contrast; don't be afraid of excessive whites, sometimes they're necessary, as are deep shadows... You're doing well, and here at #monomad you can find a space to express your creativity and perception of your surroundings as you please. Keep it up!