Vase turned into a teapot

I've been working on a teapot - that was supposed to be a vase, but after I threw it, it became just a boring vase. So I turned it around, put a bottom on it, cut off the top, made a lid out of it, attached a spout and a handle and some decoration. Ever since my teacher looked underneath one of my pieces and noted that it wasn't finished and looked sad I try to add detail, where one might not look at first, but once he examines the piece; the inside and the bottom.

Et voila: