To paint watercolor Christmas cards, you can follow these steps¹:

1. Sketch your design onto watercolor paper using a pencil.
2. Use masking tape to secure the edges of your watercolor paper, creating a clean border for your card.
3. Paint with watercolors.
4. Allow to dry.
5. Add details with a fine-tip pen.
6. Personalize and sign.

Alternatively, you can use some easy handmade watercolor Christmas card ideas²:

• Use washable markers as watercolor paint.
• Crayon resist with watercolor paint.
• Add salt to watercolor paint.
• Use painter’s tape before watercolor paint.
• Draw with glue first.
• Paint a simple word.