I think your problem might be the position of your yarns --
In Autumn Rose -- the reds are the background and the golds are the pattern --
If you are knitting two handed fair isle -- hold the red (the background shade) in your right hand, and the pattern shade, the gold, in your left hand.....that way the pattern shade is always coming from underneath the background shade -- it makes the pattern stitch ever so slightly larger and it stands out more.
If you're working with both strands in one hand -- just make sure that you're always carrying the background shade above with the pattern shade carrying along below -- never twisting.
If a piece of knitting is done with the yarns changing position -- it does stand out -- I was surprised the first time I saw this.