What are those statues at the North Entrance?

It's now been 2 years that visitors to the centre have been welcomed by 3 bronze statues at the entrance.  The life size sculptures collectively called ‘ETCETERA’. 

The pieces are by Crispin Guest, and were cast at the Haligon Foundry in Paris in 1990.  Nicknamed, Echo, Tango and Charlie, they were originally commissioned for The Waverley Centre in Edinburgh and were on display there until the Centre was refurbished in 1998.  They then came down South, to Harrow, where they were stored until rescued by Stephen Jaffe in 2002. In July 2003 they were taken back North to Doncaster to be mounted on their new plinth designed by the sculptor, Michael Johnson. Finally, in August they were carefully positioned at their new home at the Broadway.