I would recommend mixing a small quantity (5%) of Stand Linseed Oil with Liquin when your painting is going to have rich dark shadows. Even after a few days the dark colours are almost dry without any dull matt finish, normally associated with using Liquin on its own. I will ‘oil out’ the painting anyway in a few days to protect the Liquin from any future varnishing.
Unusually, at this stage the painting is glowing which usually only happens after the ‘oiling out’ process and I would have to attribute this to the oil in the medium. I am aware that one of the downsides of using Liquin is a certain ‘dulling’ of colours when compared to Linseed Oil paintings. The vibrance of this painting does seem to corroborate this view. The lack of ‘greasiness’ in the handling of the paint was also there which is an advantage of using Liquin. This medium mix seems to be the best of both worlds.
Here is the video of the painting process which took about 2 hours to complete. There is more info on the painting in previous post.