I am painting oils over these panels. You can put oils on top of acrylics, but you can’t go the other way, without peeling paint. I thought I’d change a lot, but mostly there were areas that seemed thin to me. Who knows, when this dries I may not like it either. However, I’ll take my cue from Willem DeKoonig, who worked on one of his “Woman” paintings for over 10 years. When we had llamas, you learned that you couldn’t let them win over bad behavior. You had to correct it. Same thing with paintings.