It’d be interesting to see how expressions would affect the workflow for developing different face customization options. Unless Nelson just went with a couple of fairly similar face types, he’d likely want to make a set of expressions for each face.
May or may not see something like the heart face, anomaly eyes, zombie face, or money face appear on players at all. Or, perhaps each expression would be the same for every face and it’s just the idle expression that matches your face type.