Wow! That's so pretty! I guess you gave them the idea when you asked them for a blue egg!
I have 4 EE's and the last one just started laying a couple days ago. I was lucky because each one lays a different color of eggs...an olive green egg, a pale turquoise, a pale green egg and a light pink egg! Here they are with some of my other eggs...The four on the left side starting at the darkest green one, going counter-clockwise and counting down 4 are the EE eggs!