Have you tried mixing expressions with smiles that also move the cheekbones? What you're after looks to be along the lines of "upturned eyes". If you look at someone with a pair of eyes like this, they take on the shape of a crescent moon. This is caused by the cheekbones lifted with their smile (Notice Celia smiling in the bottom left image, her cheekbones are out some and up further than the image on the right), thus making the lower part of their eyes curve some. Daz also has a Squint-Widen dial you could try, as well. As for the blonde in the top left, it looks like the dev/artist just lowered her eyes with a morph of some sort.
View attachment 1293187
View attachment 1293189