Colorful Otter Duo: Otto & Otti
There are 2 otters, Otto is the big brother, 6 years old, and has blue eyes, and Otti is the smaller sister, 4 years old, and she has red eyes. They need to be designed for small children, need to look colorful, and Otto and Otti need to look the same in every picture. Can you do this? How can I ensure they look the same in every picture?

