Respectfully imagine a devotional and serene scene from Christian theology inspired by Mark 3:18. Portray Andrew, Philip, Bartholomew, Matthew, Thomas, James the son of Alphaeus, Thaddaeus, and Simon the Canaanite situated in harmonious unity. Each individual should subtly exhibit their own unique persona while maintaining an overall sentiment of respect and devoutness. The art style should be modern and digital, avoiding any tangible text or words within the composition. All figures should be depicted in a benign and respectful manner, evoking an air of devotion and piety.