Another for my get-pushed challenge to do a "monochrome in color" this week. Giving red a try as my monochromatic color. Everything is a challenge with these. Limiting the color really focuses emphasis on lines, shapes, contrasts, and composition.
Charles @zosimasy Here is another at a monochrome in color using shades of red. Are these sort of what you were thinking of when you said monochrome in color?