This is another of Arthur's inner world's imagination. A painting with a story. He has a few pieces with giants and this particular one is funny because, he is part of the story and the giant felt in love with him.
Below you can see the explanation of his painting.
This painting is about a secret place only known to very few ones. Underneath a very small city, an entire kingdom is operating under the Queen Shakira. All the walls are scripted with the secret of Earth origin. Queen Shakira is in love with this planet and also with one of his habitats named Arthur.