I recently sold "You Are the Sister of My Heart" again. It is one of my most successful pieces, and I understand why. A sister of the heart is someone who may not be related to you by blood, but who feels like they are. They may be your best friend - someone who knows absolutely everything about you and still loves you for who you are.
I used videos to document creating another version of this piece. I posted them on Instagram, but here they are for posterity.