Ok, so I made this bunny ear, now how should I proceed from here.
Was thinking about subdividing it a few times(It's currently 88 tris) and then smooth vertex to make it less rough. Then use the "High poly mesh" for creating a normal/Ao/etc maps, and use it on the low poly one in picture related.

Do I have to make the UV map on the low poly one first, before I subdivide and smooth it? What issues might I run into?

This is my first time making anything in Blender.