Kevin said his posts started garnering lots of likes, with one photograph receiving more than 300 interactions.
The posts were spotted by staff at the Tacchi-Morris Arts Centre who approached Kevin’s parents with the idea of hosting his first show.
Angela Harding, exhibition co-ordinator, said: “I was very impressed with the work that he did for his age.
“Then the more I saw, I could tell that it was a constant talent rather than just a one-off.”
Kevin, who is a pupil at Beech Grove Primary, said his favourite thing about using watercolours is the speed.
“Watercolours take half an hour to dry, oil paintings take like a month. If I have an exhibition, I want to have lots of paintings ready.”
The exhibition starts on 25 February and runs until 28 April.