A particularly fun aspect of my job has only become apparent in the latter half of my career thus far -- watching artists "turn on." I've enjoyed meeting Kurt and Zelda at various conventions and Society of Illustrators events for the past year or so. While there is a whole like to like about their earlier work, there is a clear and steady progression from good to even better.
Further congrats for their silver medal in Spectrum 15
Further reading: An iterview with Kurt and Zelda on What to Wear to an Orange Alert.
And one further note: Zelda has the only tattoo I've ever seriously envied.