New Painting?

I have been thinking of adding a fourth piece to my senior work for a while now.  A drawing of the figure in a frontal pose was most likely going to be the basis though recently I have been reevaluating this idea.  If the theme consisted of more pieces I think a drawing would do fine but with only four total a drawing may stand out too much from the other paintings.  For this reason I have decided to at least begin a fourth painting which will be very small (around 12" x 18").  If for some reason I don't finish in time or it doesn't fit as expected I can always choose to leave it out for the time being.  Only time will tell what everything will look like in the end.  Recently I have not been feeling very confident with myself and this has taken a toll on my work.  To be honest, the more I work on these paintings the more I feel they don't belong in this show.  I feel very removed from things at the moment and I'm not quite sure what I will decide as the day closes in...