Is there a relationship between the shadow direction of garden hand-painted and the direction of the compass?

This is very important. In most cities in our country, the sun is southerly most of the time, but in the area north of the Tropic of Cancer, the sun is southerly all the time, so the shadow should face north (northwest, northeast, due north), and the direction of the shadow should avoid being parallel to the building axis, so it should be slightly inclined.

Perhaps teachers in art colleges pay more attention to the representation of graphics than to this. However, teachers in science and engineering colleges, including some agricultural and forestry colleges, are still strict in drawing, so it is best to improve the performance effect on the basis of the actual situation.