here it is, i hope it helps:
first you want to go with a light circle, once you have that start where you want the brow line to be. this is where the snout will start (the snout also acts as where the brow is)

then you will want to try to shape out the snout, i usually make a line that includes the chin then add lip details later. add the nose where you see fit, a good place is above the indent in the line where the lip will start.

then add more details to see if you get the shape you want, the line in the circle when you first start will generaly show what angle you go from


i hope this helps :)