As the days pass there is an emerging greeness heralding the lush growth of spring. On sunny days the light penetrates deep into the woods.
When I paint a sky which will be overpainted later, usually with trees, I will keep the sky paint as thin as possible to reduce the interference from the under paint. I also minimise this by not using a medium and using Alkyd quick dry oil colours. However painting wet on wet means there will be a certain amount of mixing, regardless.
This is not all bad, the under colour can help in modelling the shapes of tree branches when the solvent rich colour is applied on top. Because I use a very limited palette (3 colours in this painting) the over paint is usually a variation of what is already underneath. This means there will not be a loss of chroma which happens when too many different colours come together with white in there as well.
You will notice I applied a thick layer of paint in the sky on the extreme right. This was mostly white with blue and yellow. This, of course, was very useful in giving the effect of sunlight in the fine branches and budding leaves, painted on top. Although the white underneath was still wet I was able to put a thin layer of yellow on top without too much mixing.
The yellow was Yellow Ochre and this is exceptionally transparent, so a thin layer on top of white gives a ‘glowing’ colour, a lot richer than a colour made by mixing white with Yellow Ochre on the palette. You can see this difference if you compare the yellow in the clouds and distant fields, both made by mixing on the palette.
Here’s the video of the process, see you soon.