From Birth to 3 weeks
Most of bengals kittens are born with "closed" rosettes (black/bleu solid spots)
The darker these rosettes are, the more contrast the cat will normaly have once adult.
1 month - 4 months
As the kitten grows, rosettes start to open and a lighter colour appears in the interior giving the leopard pattern look. The rosettes opening time is different for each kitten. In the photos below the coat markings are a bit blurred due to les fuzzies:
Asia
Oskar
5 months - 12 months
Rosettes colour (edges and interior) continue to change slowly until reaching their final colours. Fuzzies also disappear making the coat markings clearer.
On the picture, Asia's coat shows clearly glitter, a hair trait of some bengals lines that gives the coat a sparkly appearance
Asia
Oskar
From Birth - 3 weeks
Marble sheeted kittens are born with their trunk and tail almost if not entirely black
Legs, head and belly are tabby like their rosetted brothers and sisters.
Onyx
1 month - 4 months
As the kitten grows, golden symmetrical markings start to be visible, first at the nape, spine and near the tail, and later on both sides of the kitten trunk (with a "marble" pattern). This kind of coat is always linked to a silky fur full of glitter.
Onyx5 months - 12 months
Oslo