snow leopard oilpaint first stages

I started a painting of a snow leapard. It is a study, I never have painted such a subject with oilpaint.
I have a book about drawing and painting animals by Edward Aldrich and this snow leapard is one of his examples. I do not want to make an exact copy, I want to make the painting more loose.
These are the first three stages, still very basic with not much detail yet.


The painting is of an A4 size, approx 20x30 cm and I use MDF as a base. It is 1,6 cm thick.
I put on several layers of gesso and sanded between the layers.
I painted the gesso also on the sides and on the back. Than I put a couple of white layers of acrylpaint on the surface and put the drawing on and sealed the drawing with transparant white acryl.
The first stage is painted with acrylpaint, the other stages I used Liquin as a medium, so I can work in transparant layers. Later on I will use more linseed oil and less Liquin to get a bit more opaque layers.