It's not your photography skills, it's just things in person are a whole lot clearer than in pics.
I know that yellow fabric. I used it in a Christmas table runner I made for a street lamp. It shines brightly in my table runner.
Actually, I have to finish sewing on the binding for that thing. When I finished it, folks said it's really a wall hanging. But, I made it as a table runner with the "kiddie table" in mind.