Yes Charlie, It looks dark to me also. I am struggling with the balance between one extreme, which is waxy translucency with no shadows, and on the other hand having the skin darker, and the features being visible!. Lighting also makes a big difference to how the skin looks. Here I just used one hemi lamp at low energy, facing the figure head-on. Finally I added in some environment lighting as well using the sky colour and also at a very low intensity. Ambient occlusion also improves things, but it is easy to do too much. Indirect lighting in Blender seems quite difficult (and rather slow), I am not sure how to set it up and it also tends to overpower the skin detail. Still learning.

Poser 11 Pro, Windows 10

Auxiliary Apps: Blender 2.79, Vue Complete 2016, Genetica 4 Pro, Gliftex 11 Pro, CorelDraw Suite X6, Comic Life 2, Project Dogwaffle Howler 8, Stitch Witch