When I was a kid shopping for clothes, I always hated how a nice plain shirt would have some weird print or patch on it that would make it cheap looking (well I was at a discount shop....). I always thought, why didn't they just leave it plain?
In this instance I was the person adding the weird print or patch - by putting dots on my paintings. I did the underlying oil paintings in an oil painting class, and I wanted to throw them away. My husband suggested that its best to keep them and archive them. So I figured a good compromise would be to keep them...and paint over them.
To me oil painting always seemed to be the more classical and sophisticated way to paint. Its like what the aristocrats and eductated people use to paint with because they are better than everybody else (this is just all in my head - not fact). I took Cel-vinyl paint (specifically Cartoon Colour) and painted dots over my oil paintings. Cel-vinyl is an acrylic paint used back when animation was done by hand. Its still around, but now that everything is digitized...well, that is another reason why I put that over the oil. Because of the state of its existence, it makes it more special to me. Oh and I am completely aware of the fact that you are "not supposed to paint acrylic over oil". BUT - it makes a nice effect when the acrylic paint retracts from it doesn't it?