Thanks! The glow is a combination of glazing pyrrol red and vat orange over a very pale primary yellow and putting it next to darker, flatter and greyer colours. Sneaking in some quinacridone magenta always seems to work some kind of magic, over red it make it a really punchy red srifting to purple with more layers. Then i made sure i spread the colour into the objects, and up past the edges of the horizon. Vat orange punches above its weight in glow.