Good progress today now I have added white!
Decisions:
The background should be all lemon yellow and then can use Indian yellow on top to bring the orangey tinge. Not too much though. Think it should just be in the periphery.
The combination of viridian and transparent oxide red worked really well, adding in Indian yellow near the boundary.
For the sky behind the clouds use manganese violet with white. Then transition from Indian yellow to French ultramarine. I think maybe use viridian for the moon?
No don’t think that will work. Will build it up with the ultramarine and white.