Create a digital artwork inspired by the biblical theme of Mark 9:50. Picture a mound of distinct salt crystals up close, visibly sparkling and retaining their saltiness. Intertwine the salt with subtle symbols such as olive branches or doves, signifying peace and harmony. Add some people of diverse descents, genders and ages, depicted peacefully interacting with each other, subtly hinting at living in unity and sharing salt among themselves. The entire scene should have a calming and devotional feel, embodying the spirit of Christianity. Ensure the artwork maintains a respectful and reverent tone throughout.