Crayon Resist Valentine's Cards

Blaze's Valentine cards are ready to be mailed. He made one for his oldest sister and one for his Grandmother.
He told me he couldn't draw hearts, although he drew the one that replaces the "O" in love inside his Grandmother's card, so I drew the hearts and bubble letters with pencil and he colored them in, heavily, with crayons.
Then he painted over both cards with very watered down red watercolor paint.

Ula's Card:





Grandmother's Card: