Ronald Tree Nursery pupils Tate and Liliana, both aged four, were commissioned by Kettering Town Council to produce posters depicting the monarch, marking her 70 years on the throne.
The girls’ artworks have been printed on durable boards and attached to lampposts in and around the High Street.
Cllr Robin Carter said: “They are really, really good. Our idea was to decorate the town centre and we chose two super artists. It’s nice to get the nurseries involved.”
A total of 40 posters have been put up.
Tate, one of the artists, said: “I drew The Queen for her special party.”
Bartek Nieznanski, Liliana’s dad, said: “We are very proud of her.”
Residents with any suggestions for future town council-supported events can email [email protected]