as a commuting cyclist in the big city for decades I have found it safer to ride with traffic, have a rear view mirror, which I check many times a minute, and hand signals to the cars behind, helping to direct them around.
riding on the sidewalks opens up a new set of problems, bad surface, and people to get around.
the cruel part referred to the graffiti on the wall.
Eye-catching composition. I like the slightly tilted road and the tag on the wall, as if that was a starting point for some platform jumper game she's embarking on. XD.
Simple with a lot of detail, nicely done!