Cassie Peters Digital Art - Valentine Digital Art by Angelandspot - Greeting Cards-12 Greeting Cards with envelopes by Cassie Peters. $15.95. Valentine Digital Art by Angelandspot Greeting Card is measuring 5.5w x 5.5h. Greeting Cards are sold in sets of 6 or 12. Give these fun cards to your friends and family as gift cards, thank you notes, invitations or for any other occasion. Greeting Cards are blank inside and come with white envelopes.