The Duke of Cambridge waas also ful of praise for the portrait.
Prince William said:: "It's beautiful, it's absolutely beautiful."
The Cambridges later attended a private breakfast reception at the London gallery to mark the unveiling.
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It's going to be another dry day with plenty of sunny spells and feeling humid. Highs of 27 deg C.
A castle in Suffolk's hosted its first ever medieval jousting tournament as calls are made to make it an Olympic sport.
A mainly dry day with some sunny spells in the morning, but turning cloudier during the afternoon. Feeling warm. Highs of 27 deg C.