The three people at the table symbolize togetherness and friendship. To create a sense of calm, you could use soft, muted colors for the people’s skin, clothing and the background. For the man, you could choose a brownish reddish hue for his shirt and tan for his pants to signify warmth. The two women’s clothing could appear in shades of green and purple. To bring a sense of nature in the picture, you could use soft greens and greys for the background. For the table’s surface, choose a calming blue to create a tranquil atmosphere. To add a bit of fun, you could choose bolder colors for the food. For example, a bright red for the sandwich, a light yellow for the salad, and bright orange for the soup.