Paints are studio-made. All materials used are organic and sustainable. Have been since the early 90s. Main ingredients are kasein and soda and pigments for paints and quark and lime for primers. I also use distilled resins and oils and wax.
For drawings. I use charcoal and pressed pigments or soft pastels and ink and sand
Digitals are done with graphic-design programs on the computer. Always based on original drawings.