Myles' mother, Charlotte, said: "I'm so proud of him, it came out beautifully.
"Myles' dad listens to the radio, so he heard about the competition and mentioned it to Myles - who was probably playing Minecraft at the time!
"If he's not playing it, he's wearing it or talking about it.. he's quite the fanatic."
Myles said he worked on the poem for two days.