Hi TWS.
It may be your policy (policy as in habit or practices) not to crop
the photos. Good, but it expands the distraction factor.
Distraction is what we do not want to see in pictures.
Distraction is evident in the 811J photo, too many details in the
background like the taxi on the left and generally the bus is being
'compared' to its surroundings, in other words, negative
distractions. A positive distraction is where by the object needs
to be compared to the surroundings to show how small it is. Big
does not need exaggeration.
Eyes tend to wander off to sharp colors, avoid the traffic lights
in this case, like the 1814M picture, the light is immediately
above the bus, makes it look much like a distraction and
eye-catcher at the same time.
Exposure wise is ok, just do not go for too high an exposure, even
if bright is the trend, it is good to go against the trend in some
cases.
Enjoy shooting more.