I started with the basic outline and a few initial strokes imitating a woodcut engraving effect on a black background.
I added a layer for shading and experimented with the opacity. I added more strokes in the lighter areas to continue the woodcut effect.
Adjusted the opacity to a darker tone.
The original reference photo was in black and white, I added color to make the drawing more vibrant.
Final details and shading
Close-up detail.
I Have a Dream . . .