Joan Bakewell and Frank Skinner begin their search for Sky Arts' Portrait Artist of the Year in London, where artists are asked to paint stars such as Alison Steadman.

Frank Skinner, Joan Bakewell and the judges head to Glasgow as 21 competitors capture celebrity sitters including actor John Hannah and paralympian Michael Kerr.

Frank Skinner and Joan Bakewell take the competition to Dublin where 21 artists hope to wow the judges with portraits of Pauline McLynn, David Rawle and Lethal Bizzle.

The final heat takes Joan Bakewell and Frank Skinner to Wales where artists paint a topless Gavin Henson, Lucian Freud's muse Sue Tilley and war veteran Simon Weston.

The penultimate stage of the competition takes the four finalists to the French Capital, where they have six hours to paint author and model Sophie Dahl.

The finalists unveil one last portrait before the judges enter tense discussions over the winner. Who will be crowed Portrait Artist of the Year?