I had a great picture comparing my B67 and my Serfas Niva.

Photobucket ate it, because I didn't touch the account for so long. You look at the top view, not the sides like the pictures you put up.

From the top, look at the transition from the sit part to the nose. If it is gradual, it's on the pear side of the universe. If it's abrupt, it's on the T side.