This camo is used by all branches not exclusively for the marines.
Without the beret, insignia and patch I can't tell where the soldier is from (army, air force, navy (+marine)).
Sometimes the camo looks good and blends well with the surrounding but sometimes it doesn't. Depends on the region and seasons.
This one is used by marines only.
Does Indonesia have any naval camos. I really do like the Chinese blue naval camos since Indonesia is an island nation with a navy history playing a role in the country for centuries. There should be some nice naval camos.