You now have a nice ring to select on the outside and smooth-shift those again to get a basic ear shape.

Now a little bit of poly and vertex moving for shaping the ear

Okay, it finally looks like an ear. I have selected the next 4 polygons and smooth-shifted them and scale them down which will generate new polygons to model the inside of the ear.

The next thing is to model the ear canal. Just select this poly and smooth-shift it inside twice.