After reading the thread I linked to above, I was wondering about this. I've gotten several of these "patchwork" geese from my birds so far, but I couldn't find any pictures of it from other sources. I assumed most people posting pictures of their geese aren't posting crosses.
Sorry, I don't know the names of the colors or anything; it's not something I've paid much attention to. I just know combining my white breed with my buff breed often results in that soft grey color. As to what it will look like, what you're seeing now is the what I expect you'll wind up with -...