This illustration was done in Procreate. You can view the stages of the illustration below from the rough sketch to the final illustration.

Rough sketch of the Sacred Heart including the crown of thorns, a cross, and flames.

Rough outline of the Sacred Heart including the crown of thorns, a cross, and flames.

Basic color-blocking and shape filling, which will be used as a base for the final work.

The final finished illustration of the Sacred Heart of Jesus, including the heart, crown of thorns, bleeding spear wound, cross, and flames.