A flash also helps to bring out vivid colors on overcast days. No matter how good your exposure technique and how sophisticated the equipment, nothing can match the beautiful quality of light in a scene. This usually requires patience. Usually, early in the morning or late afternoon light is best. But so are stormy days, when the mood of the sky and light is ever-changing.
Most people tend to stand away from their subject.
I always encourage people to get as close as possible, then get closer. Look carefully through the viewfinder, then back up as necessary. Usually it's not necessary. W. Eugene Smith said you have to be close to see the truth. That sentiment isn't unique to photojournalism.