Design of congratulatory email messages

We need to design congratulatory emails. We will congratulate on the birthday of customers who left their e-mail and date of birth, as well as owners of discount cards.

The design should be different for the female and male, as well as for the type of buyers - an ordinary client, a client with a discount card. I mean. There are 4 types of letters.

For each letter - 750 rubles.