Topology looks good so far, the area around lips and eyes is correct. On the pictures that you placed, back of the head looks somehow weird, like a bit sticking out (I might be mistaken). You could remove few polygons at bottom of face, it looks like you have bit too many of them in there. Good luck!
ya I will model the body foot and arms seperate then weld them that might be the best way of doing everything
I dont know how you do when you modelling
Nice, I just saw one thing. The nose on middle pic looks too smooth. I mean part where skin connects to chick. Also remember to add E shape to the ear.