I figured I'd try outlining the letters to perhaps try and make them stand out a touch more. This is obviously not as time-involved an example as you would do, since you're more concerned with it, it's just something to see how she looks.
From the left (I only did the "EFEN" because they were fairly straight letters, and didn't worry too much about the curves) I have a 1 pixel yellow line, then a 2 pixel yellow line, 2 pixel red line, and finally, 1 pixel red line.