Congratulations on the new eggs! The color isn't bad for a GCM. They need work. I hatch the two pullets (I am still waiting on!!) from my darkest egg layer, so I am anxious to see what color they lay!! The rooster determines egg color, so if you can use a rooster out of the darkest eggs, you have a better chance of getting the color you want. And then there is the color staying power. My hen that lays the darkest eggs also keeps the color through her laying cycle. I am trying to build my flock up with her offspring in hopes that she passes that on.