kenchi,
if you look at the first picture - and think commercial photography - you can basically put any product in the middle of the street and be able to sell it.
a raggedy ann doll in the foreground would be nice, while a white outline of a body would be gruesome. (there's an artist in new york city that outlines people's bodies on the streets & sidewalks. I wonder why he never outlined people against buildings (because it's private property?))
the second picture seems to have been dodged - the top of the building on the left side is darker than the bottom - when it should normally be the opposite (see the shadow on the tower on the right).
here in Arizona, there are people who will perch for hours waiting for the right moment to take one picture (especially if there is a thunderstorm in the area. they wait for the light going through the clouds, or rainbows, lightning, etc.).
me, i only take pictures between 10 am and 2 pm. and there had better be fluffy clouds. and i have to make sure that i don't overuse the polarizer filter.
i still miss my minolta srt201 and the f.7 lens. i gave up my photo hobby. i graduated to mamiya c330f, c220, m645... then when i moved to nyc, i lost all interest. but i still take a mean picture when people ask me to take their picture. they think all they are getting are snapshots, but i make them move to the best place for excellent composition, wait for traffic in the background to move, expose for the foreground (bracket) when shooting against or directly into the sun, etc. i know my pictures are hanging in people's houses right now, usually about 16x20s. i prefer poster sizes
i remember taking a picture of a japanese grandfather and grandson while we were standing in a river. the guy must have thought that i was crazy when i went into contortions to make sure that the background didn't detract from the picture. i'm sure that it is hanging in his den, it was that good. he should be proud of it. (it comes from my taking protrait and wedding pictures).
where were these pictures taken, San Francisco, Philadelphia, Boston? (nyc has taller buildings - creating canyons).