Here are kittens from two separate litters from the Witman Manor Maine Coon Cattery. The red/cameo litter is 5 weeks old. The silver litter is about 3 weeks old. This is Diesel's litter.
Here are the red kittens and cameo kittens.
Here's a closer look at the silver kittens.
Here's a litter of brown kittens. They are two days old.