u really need a good camera, seriously.
In fact, skills takes up a larger percentage of such bus
photography. It's better to learn those features in your camera
first, experiment with basic settings (ie exposure, ISO, shutter
speed etc) and then get the suitable settings for
sunlight/backlight/EDS/night shots, then proceed on with angles and
all that. Phone camera ain't recommended, because there're higher
chance of the photo getting distorted.
It's like when I'm using my camera for the first time, I use
ISO-1600 with angles that are not too bad, but in the end, my
photos were spoilt by the noise.