Inside Jasamats, showing "Mk 2" Jaguar 21 interior with the sink next to the lift keel case.
The winch is exposed in later boats. The fresh water container is under the sink and the drain goes straight into the keel case
The keel case is covered in a white moulding which minimises the room it takes up
By contrast, on earlier boats the keel case is covered in wood.
The cooker is next to the keel case and the sink is outboard of that. Otherwise there is very little differerence.