Musar על עבודה זרה 40:4

Also, the woman who adorns herself to display herself before men arouses their desire and puts unworthy thoughts in their minds and for this her punishment is very great for she places a stumbling block before many. Did not our Sages forbid men to gaze at the gaily colored garments of women when these garments are spread out upon the wall, even when she is not dressed in them, all the more so is there great punishment for a woman who adorns herself for men who ogle her.