/3/ - 3DCG

I think this makes sense to ask here.
What would be the best way to start modeling this in 3D? I'm just starting with learning how to model, so I'm having trouble visualizing the beginning. I see some eye tutorials that start with two overlapped spheres, subtracting from the outer to make the brow. That kind of makes sense to me, but still doesn't feel quite right. Maybe that's just my inexperience coupled with my case being a little different than a normal eye.