About the Image(s)

Taken with my IPhone 14 Pro Max, Focal Length 6.06 mm, Speed 1/120 sec., F/1.8, ISO 50. Post processing Photoshop Basic adjustments: increasing the blur and desaturating the background. Used Nic Color Flex to adjust colors and ON1 to remove grain. This was a difficult setting to photograph with lots of bright light in the street and the vendor in the shade under the canopy. I tried the image as a black and white with only the vendor in color but found it too difficult to select only the vendor. I do not often do street photography. Would the image be stronger as a pure black & white, or with isolating only the vendor in color? What do you think makes a strong street photograph?