Your right I did mean tailights I don't know why I said headlights lol. I don't think the white inserts will look bad I just don't think you will need any more that that. Have anymore pics of the tails?
I think you might over do it with the white valence. If anything, I would paint it red, the same color of the car. You have toooo many color differances (white, red, and black). Try to stick with only 2 colors. It might be hard for you considering your interior is white (i think). For lack of better words, your car looks "un-organized."