As for the language style, it depends on which seat in which room you occupy to hear the words.   A seat in a seminar will do just fine;  a photo chat with a casual passerby will not.

As for monochrome vs. full color, I remember images from Vietnam during the war there.  Battle line shots in color simply looked hollywood while bw conveyed the situation better. Then of course, the little girl following a napalm attack, running naked in the street..that Pulitzer price winner was color as I recall.    Application one way or the other simply has to do with  elements of the image...well, I better still my typing or I will begin to wax philosophical..