Here are some greeting cards, logos, and character designs.
The Birds' Best Wishes

The Birthday Cupcake Delivery
The Snow Girl and the Bunny

The Herb Garden Logo and the Characters

The Catalog for Herbs

The Dango Girl and the Kokeshi Girls
Pago and Pinguin
Magda and Cooma
Magda, Pago, Cooma, and Pinguin
-Aimu; Aimegane character
-Aiwellness logo