Finished banana's look.

The last but not least task was to create a banana. The box was created on the perspective viewport, later going to sub-object level the box was extruded (bevel tool also was used). Soft selection helped to make random shape. Later as a finish, the figure was smoothed with turbo-smooth modifier. In my opinion, this banana is too much smoothed and looks a little bit like carrot, but as a first experiment I think it is ok.