blender practice

As I need more modeling experience and samples- I decided to look at Blender 2.68a and use the dynamic topology feature as a start for modeling a funny face mask.   I found out that the dynamic topology works on Zero Level subdivision surfaces only and will model faceted planes into shape using the brush tools.   I decided to take an image I mocked up in Sketchbook Pro of a silly face as a reference and start with that.  I did not want it super clean at start due to retopping, so you could say this was a retopping test-.
I need a lot more practice to understand face topology and edge flow, but doing a stylized funny face is more forgiving than a realistic one. After retopping half the head, I mirrored it and merge the center vertices. I then took my retopped surface and subdivided to level 4 in the modifier section. My last bit was to clean up the surface  by smoothing many surface irregularities in sculpt mode. I also need to practice describing my process clearer.  Oh,well here it is...