Nice! That would be really interesting from my POV, as it would pit my top fave (very dark ebony) with my least fave (redhead). Might be interesting to see how that goes!
I went through a period where duos of contrasting appearances really revved my engines (e.g, short busty H cup indian and 6' tall athletic/model type A cup latina/ebony mix; Asian A cup spinner w D cup huge bum ebony; blonde white and dark ebony...
However my ebony adoration finds the dynamic duo of Kimberly Rose and Melissa Rose a great mix of very tall, dark athletic/beach volleyball type figure w talll caramel colour va va va voom DD cup big bum type figure.