this is looking very promising, your work improves with every effort... im not seeing any of those nasty "knots" in the mesh i was seeing in your previous model, nice even flow on your loops, most geometry 'makes sense' ... i may suggest optomising areas such as the back of the head unless you are allowing for further sculpting there... the main enemy though is knots where convergence of loops occur that make smoothing difficult or impossible, im not seeing any of those, i would have to give this mesh high marks ...you are definately heading in the right direction, this could 'evolve' into an excellent character...good progress...

 

:O)

Y'all have a great day.