An image released by Kensington Palace on Father’s Day reveals Prince Louis’ determination, a body language expert has claimed.

Prince Louis is determined to show he is “no longer a little kid” a body language expert has claimed, following a newly-released Father’s Day picture by Kensington Palace.

Prince William posed alongside his three young children for a photo that was uploaded to mark the loving occasion in the UK calendar. The image, which is said to have been taken last month, shows the Prince of Wales, Princess Charlotte, Prince George and Prince Louis all facing away from the camera.

They are looking out at the blue sky and sea in Norfolk. Louis in the picture, has his left arm down by his side instead of wrapping it around his father who is standing next to him.

Commenting on the beautiful image, body language expert, Judi James explained how Louis’ demeanour had some key indicators about how he feels as the youngest royal.

She said: “Louis keeps his own left arm hanging down, suggesting a strong desire to prove he’s not a small child anymore.”

Instead of a generic Father’s Day that has come in previous years, the message was signed off with the children’s initials – something that is often done by both William and their mother, the Princess of Wales.