Just think of the nose as a rectangular prism produding from the centre of the face -- it's basically just a long simple shape with a smaller shape on either side at the end. You can think of the overall shape simplified as a triangular wedge (including the nostrils (or whatever the outter part of the nostrils are called...)). I would draw an example, but I'm working on my essay and it's 3 in the morning. I can try to do something tomorrow
Your noses actually look really good, especially the first one :p I was thinking of posting some examples by another illustrator, but it really is a pretty complicated form if you don't think in simplified terms. Think simple and add detail afterward. I can only create great figural poses from my imagination if a use a stick figure foundation.
I also liked your ear in the second one.
Are you drawing from a mirror or photo?
It's great to see you posting so much Stephen. It's super easy to learn if you practice as much as it seems like you are! I guess another big trick for "look-drawing" is to look at everything in relation to everything around it... I always start with an outline of the head and add facial features after and then adjust the initial outline according to the changes made within. So for example, where does the end of the nose end in relation to jaw muscles and the bottom of the ear? How are the eyes spaced in relation to the span of the nostrils? How far do the lips stretch in relation to the nostrils and eyes? It helps a lot to keep that in mind.
EDIT: Oh, another big help for drawing the body is trying to understand how all the muscles work. So if you're trying to draw lips, move your mouth around and stretch your lips and figure out how they move and how other parts (like your cheeks, jaw/chin, even eyebrows) move with them. This is kind of a more advanced tip that may just complicate things if you're not ready, but in just in general it helps a lot to think about what's under the surface and think about your own body when you're drawing figurally. I find myself studying my professors' faces in class and seeing how different peoples' bodies look and move.