Add dimension to your hair by adding high and lowlights (golds, coppers, etc.) It really makes your hair less flat looking. Also, a little color on your skin (a light tan or some blush/bronzer/etc.) will prevent that look as well.
Washed out from being monotone. Hair is never a solid color, there are lots of variations in it, so they obviously need a better dye job. Then they also probably chose the wrong shade of blonde for their skin tone.