Most Helpful Guy
If you want to take it up a notch, think about the underlying bone structure.
For example things like check bones, eye sockets. You can get some much nicer shapes and form in to the sculpt with what you have there, I'd start with the eye sockets, poke the divots, place the eye balls in the socket and then create some eye lids.
I'd also not use the second layer for the pupils I'd use a point to poke the indication of the pupil and iris.
Hope that helps :)
Most Helpful Girl
its so cute