Illustrate a scene showing a biblical metaphorical portrayal inspired by Mark 3:15. Picture a paved pathway in a serene landscape. Seeds falling by the wayside, representative of the divine word, an ominous entity is seen approach, symbolizing the antagonist of the teachings. Imply the act of stealing the word that was ingrained in their hearts without explicitly showing the hearts. Make sure the art is respectful and devotional to Christianity. The artwork should be in the technique of watercolor painting, with a gentle play of hues portraying the emotion of the scenario.