I have used water based oils, both Windsor Newton and mainly Holbein for over 24 years. But to paint in this manner as Morgan teaches the solvents with them are not quite the same. For things like this, I also have oils and have used them for years from this link. I know Morgan is not recommending them to use, but they have https://arttreehouse.com/artstore/reports/about-our-colours/ Art Treehouse Colours contain no solvents or alkyds. They are made with pure walnut or linseed-flax oil, and pigments. They are compatible with many mediums such as…Linseed Oil, Walnut Oil, Impasto Medium, Varnish Medium, Oil of Spike, Lavender, and Biobased Thinners . Morgan I am putting together my supplies for this course and here is what you can use with the water based...but I never had any positive luck with the tubes that say quick dry Took twice as long to dry. From Holbein waterbased: https://holbeinartistmaterials.com/mediums-varnishes/duo-mediums/ Looking at these choices as you scroll down this page, Morgan what might come close to what could be used? I need to purchase things as I run into Dallas this week. Thank you!

I need to use water mixable oils because I have to work in a pretty small space with less than optimal ventilation. I couldn't find yellow ochre pale, so I bought regular yellow ochre. Will that still work with the alizarin crimson? Are there any special considerations using the regular version versus the pale version?

Hello Mr Weistling! I'm enjoying a lot with this course! The room where I am starting to paint is not very well ventilated, so I'd like to go totally free from solvents. My question is what can I use instead of the mix of walnut alkyd and gamsol?. Perhaps Sennelier Green for oil Medium? Gamglin solvent free mediums? Only walnut alkyd without Gamsol? I'm a bit overwhelmed about how to go solvent free. Thanks and again... this course is awesome!!!