Oh, I did actually notice I could see the slit in his eye because his eyes are more silver but I thought I just didn't notice before hand. I just don't like the look of aspen, I like the brown and more natural looking substrates. They go with how my tank looks, but if I had to switch I definitely would.
I was really worried about the little guy. Thanks for helping me since I am a new ball python owner and I don't have much first hand experience.