Editing WIP (section)

==== Zenithal priming ====
The zenith is the highest point of the sun in the sky, usually at noon. Hence, zenithal priming aims to reproduce a light shining above the figure and shadows under it by using a dark primer all around, then a brighter priming on the surfaces at the top. You can see some pictures to get a general idea [https://www.actionfiguretoronto.com/2017/03/11/zenithal-priming/ here]. You can use a grey primer first then use a white one, or go hardcore and do three coats of black all around / grey on top and diagonal (think of clock hands between 10 and 2) / white on top (clock hands at noon, or at zenith). 

In any case, remember that it's the model and not the spray can / airbrush that needs to be moved! When painting the top, do not put your tool vertically over the figure or you'll risk disturbing the paint flow. Move your figure at an angle in front of your primer.