Example with instagram description.
[name_shortcode user="thenorthface" display_photo_description="on" number_photos="3" columns="3"]

Example without instagram description.
[name_shortcode user="thenorthface" display_photo_description="off" number_photos="3" columns="3"]

[name_shortcode user="thenorthface" photo_description_colour="red" number_photos="3" columns="3"]

[name_shortcode user="thenorthface" photo_description_colour="blue" number_photos="3" columns="3"]

[name_shortcode user="thenorthface" photo_description_colour="#E80C7A" number_photos="3" columns="3"]