Grabbed some pictures as the LED's lit up this morning, not 100% accurate but gives an idea of the additive effect with each string:

Top left - Royal Blues
Bottom Left - Royal Blues, Blues and Turquoise
Bottom Right - Royal Blues, Blues, Turquoise, Violet and Pink
Top Right - Royal Blues, Blues, Turquoise, Violet, Pink, Cool White and Warm White

I like how you did these shots. Very cool to see under each