The 30 pupils from years three to six at Palmers Cross Primary School spent two weeks creating their amazing artwork.
Now it is to be exhibited on the wall of the main corridor within the school buildings.
It has been made by children of keyworkers and the artwork will now be seen by visitors to the school.
Teacher Mrs Charlotte Priest helped inspire pupils to create the picture of the man who became a national icon.
Sir Captain Tom Moore became known for lifting the spirits of the nation by doing laps of his garden with his stroller during the pandemic and raising millions of pounds for National Health Service charities.
Assistant headteacher Jayne Cox said: “The idea for the artwork initially came from Mrs Priest. She drew the outline of the mosaic. Pupils then used coloured tissue paper to create the collage.
“The picture measures about five feet by three feet in dimension. It is really an amazing resemblance to photographs of Sir Captain Tom Moore.
“Even the pupils were impressed by how good it looks. People were saddened by Sir Captain Tom Moore’s passing and the children recognised him from his television appearances and from all his achievements.
"Everyone is delighted by the artwork which will eventually go on display in the main corridor of the school.”