It took me a while to decide what Ellen was going to wear. I ultimately decided that, if I was going to have her intentionally dress over the top for this, then she darn well better be wearing something that's clearly over the top. As much as I will applaud well done subtlety, there's a time for that, and this wasn't it.
That said, someone might read the second panel of this comic, recall two comics ago, and be tempted to ask a particular question. I know this, because it is a question I am asked without fail whenever this particular sort of scenario comes up, and my answer is simple: Stylistic personal choice to not include such details.