IMO, there's pastel fire or a lower grade super pastel. There's too much color there for it to be a single gene at that age. Pastels brown out way too much. I don't think being het would keep that much color to it.
The only way to be sure if breeding I suppose. Find another snake with a fire or vanilla gene and see what happens? Or if you get only pastels from a normal then yeah, super pastel
On the green eyes thing... Not every pastel will have them and other genes can muddle the color. My killer queenbee has hazel eyes, my pastel has light brown.