I’ve created a low-poly stylized tree in Blender 2.8 and rendered it with Eevee. Some of the shadows on the leaves are very jagged and quite ugly.
The entire scene is simply a camera, a sun light source and a few meshes with a single material each for the tree.
I’ve played a little with the sun light settings but it only seemed to shift where the jaggedness was occurring. I've taken a look at some similar threads on StackExchange but the suggestions didn't seem to help.
Ideally, I’m not simply chasing a “how to fix it”. I don’t have much knowledge on 3D modelling and rendering, so any explanations as to why this is occurring would be great!