That’s a brilliant idea—mixing pigments to match photon wavelengths is a neat way to turn physics into art. Just remember that starlight isn’t a single color; it’s a mix of spectral lines, so you’ll need a spectrophotometer to calibrate each hue precisely. And don’t forget Doppler shifts from stellar motion—those tiny wavelength changes could make your mural a little dynamic if you’re feeling adventurous. Good luck, and let me know how the cosmic palette turns out!