It’s pretty fair so far. Just don’t forget the ears and eyes of course and you’re good to go. And don’t forget to watch out for topology if you plan to animate the head. Finish this up and we’ll see how it goes.
What is it that you are going for if not realistic, cartoony? You would need to decide that.
The art that you see from the guys that are really good here on the forum and elsewhere on other CG sites have put innumerable hours of effort into their craft/hobby and if you want to achieve anything in CG you would need to do the same, this applies to anything else in life, if you want to be good at it you have to be at it constantly.
I would suggest you have a look at some good head modeling tutorials ( there are plenty on the net for free ) and put your head down and get stuck in.
I’m not sure how people usually post it but there is an option in the object panel under display where you can turn on wire frame and draw all edges to show the wire frame over the mesh. Alternatively you can press ‘Z’ to switch to wire frame but that looks messy.