My champagne butter had dark eyes. She was very light yellow but still had the darker smudgy champagne head. I would think the pastel gene would lighten the head and body more making it look like an ivory color and perhaps lighten the eyes to green. Odd how this ones eyes are blue. However, I will tell you that I had two Mojave Enchi one with green eyes and one with blue eyes. The green eyed one was the sire of the blue eyed one and the dam was a Mojave. So perhaps that happened here as well? I can almost see some yellow on the snake pictured as well.