Hi Melania,
If this were mine, I would crop up the black vertical on the left of the roller shutter door, since that gives a nice set of leading lines into the shot.
I agree. In fact the resulting square format makes for a very strong comp.
I also really like this image. The balance of the walking man (image right - bottom) is great since the foot position leads into the rest of the image.
I agree with the comments above regarding cropping a bit off the left sid of the image. However I also cropped a bit off the top making it almost square.
I also darkened the sidewalk a tad as well as the sky and the building with the "T.P. S" logo...
Nicely done. I would be interested in the man seated to the left.
Thank you so much for your suggestions!