Black is not a colour; a black object absorbs all the colours of the visible spectrum and reflects none of them to the eyes. The grey area about black: A black object may look black, but, technically, it may still be reflecting some light.
Being " an artist " allows you an expression as any other forms of art does! Learning to process and then deconstruct an image is calming to the soul. Best of all no one need like it, or agree with you and that is wonderfully liberating.