Design a range of greeting cards

I want a small range of greeting cards. One simple character that covers most occasions. Birthdays, weddings, new babies, anniversaries, get well, love/friendship. So around 6-8 simple designs are needed, some could be unisex that appeal to both men and women.
I want them to be clear images, crisp and easy on the eye that stand out so no busy backgrounds please. These need to have a great visual impact on a smartphone.
If you want to add text then that is fine. Funny or quirky one liners etc
Would need them within the next week in digital format. Jpeg or png.
More future work could be made available too.