A visual interpretation of the biblical verse from Matthew 26:8, "But when his disciples saw it, they had indignation, saying, To what purpose is this waste?" The scene portrays the disciples expressing their indignation, with their facial expressions reflecting shock, confusion, and disappointment. They might be gesturing towards something unseen that signifies 'waste', leaving it up to the viewer's interpretation. Please execute this in a digital art style, keeping the lines smooth and the colours vibrant. The overall atmosphere should convey a solemn, hushed tone in proportion with the seriousness of the biblical context.