Hi everyone - found a name for the ship, it is called "Penumbra".
It travels the seas of grass as a merchant ship, where there are only the remains of old civilizations left. Its sail shows the banner of the Merchants guild of the nearby islands, and it mostly trades Ember from the chalk cliffs towards the centre of the island, where the mountain region has lots of use for the glasslike stone.
I'm really proud of the sail, and it sets itself off nicely against the rather dark sky. This has also been the first time to paint the sky with such visible strokes, I kind of like them this way.
Have a nice rest of the week!
Best,
Simon