Hello,
I had already pointed out a few weeks ago that, in my opinion, the size of the buoys was too small.
During the day, we can only see them at about 0.7 mile, which is really insufficient, especially when maneuvering the large ship.
Buoys, especially those in a main channel, should be visible at around 2.0/2.5 miles by eye without the use of binoculars in normal visibility. Even if you can't distinguish the category of beacon (starboard, port, etc.), it will still be possible to use binoculars to identify them.
This should also be the case for special marker buoys such as fairway buoys, isolated hazards, cardinal buoys North, East, South and West.