I was very happy with the AFM backglass they did. It was a bit darker than the translite, but much more saturated colors and I thought it was a big improvement.
That said, I don't think you're being unreasonable. That's a pretty stark difference. The original is very easy to make out the details, lots of contrasting colors in the middle of the action. The reproduction is pretty drab and muddy.
Does lighting up the reproduction help it much?